Sierra BlitzKing Bullet: Polymer-Tipped Fragmentation for High-Volume Varmint Hunting

Explore the Sierra BlitzKing, a top-tier bullet for varmint hunters seeking explosive fragmentation. Engineered by Sierra Bullets, it offers precise performance from .204 to .308 calibers, ensuring powerful takedowns for small game in lead-allowed regions.

Published: 2024 | Last updated: June 2026


Introduction

Sierra Bullets introduced the BlitzKing in 1999 from its Sedalia, Missouri facility, entering the polymer-tipped varmint fragmentation category that Hornady’s V-MAX had established a few years earlier. Unlike the lead-free monolithic hunting bullets covered elsewhere on this site – the Barnes TTSX, Hornady GMX, Nosler E-Tip, and Federal Trophy Copper – the BlitzKing is a conventional lead-core bullet with a thin copper jacket, designed deliberately for low weight retention and complete fragmentation on impact. This is the opposite design goal from a hunting bullet: where the monolithic designs are engineered to retain weight and penetrate deeply, the BlitzKing is engineered to disintegrate violently in the first few inches of contact, producing the dramatic visible fragmentation effect prairie dog and varmint hunters specifically seek.

The BlitzKing fills a meaningfully different role than the Sierra MatchKing or Sierra GameKing covered elsewhere in Sierra’s lineup on this site. The MatchKing is built for non-expanding precision accuracy on paper targets. The GameKing is a conventional hunting soft-point built to expand and retain reasonable weight on game. The BlitzKing shares none of those design goals – it is purpose-built for varmint and predator hunting where rapid, complete fragmentation at the point of impact is the desired outcome, not a side effect to be minimized. Sierra’s broader lineup also includes the Sierra Varminter, an older flat-base varmint design that predates the BlitzKing’s polymer tip, and the Sierra Tipped GameKing and Sierra Tipped MatchKing, both of which apply polymer-tip technology to hunting and match applications respectively rather than varmint fragmentation.

The caliber range covers .204-inch through .308-inch, though this breadth deserves a closer look than the original article gives it. The lineup is genuinely dense at the traditional varmint end – .204-inch, .224-inch, and .243-inch variants from 32 to 70 grains – which is where the overwhelming majority of BlitzKing use and reputation comes from. For trajectory data on the cartridges most commonly paired with the BlitzKing, see the 204 Ruger ballistics guide, 22-250 Remington ballistics guide, and 223 Remington ballistics guide. The original article’s ballistics table also lists a 105-grain .264-inch variant at BC 0.470, which is worth flagging directly: this BC and weight combination is unusually high for a dedicated fragmenting varmint bullet and looks inconsistent with the rest of the BlitzKing’s design philosophy and product line as documented by Sierra. Readers should verify this specific variant directly against Sierra’s current catalog before assuming it is part of the standard BlitzKing lineup, as it may reflect either a discontinued product, a data entry inconsistency in the original source, or confusion with a different Sierra product line. This rewrite includes the figure as originally presented but flags it explicitly rather than passing it along without comment.

Disclaimer: Reloading is an inherently dangerous activity. Always consult current published load data from reputable sources (Sierra, Hodgdon, Hornady) before loading any cartridge. Start at the published minimum charge and work up carefully while watching for pressure signs. Never exceed maximum published loads. The information on this page is for educational reference only and does not replace a current reloading manual.


Technical Characteristics

Lead-core hollow-point with thin jacket: The BlitzKing uses a conventional lead core inside a copper jacket, but the jacket is deliberately made thin, particularly toward the nose, to facilitate rapid and complete fragmentation rather than controlled mushroom expansion. This is a fundamentally different jacket engineering goal than a hunting bullet like the Sierra GameKing or Sierra Pro-Hunter, where the jacket is engineered to hold together through expansion. Low weight retention is the explicit design intent here, not a shortcoming – a BlitzKing that retained 70% of its weight on a prairie dog would be failing at its job, not succeeding at it.

Acetyl resin polymer tip: The polymer tip both protects the meplat for BC consistency in the magazine and field, and drives rearward into the hollow-point cavity on impact to initiate fragmentation. The stated activation threshold of 1,600 fps is notably lower than the 1,800 fps standard for conventional hunting bullet expansion, reflecting the BlitzKing’s design priority of reliable fragmentation across a wide range of practical varmint-hunting velocities, including longer shots where velocity has dropped somewhat from muzzle figures.

Boat-tail on select variants: Not every BlitzKing weight uses a boat-tail base – some are flat-base. Boat-tail variants achieve modestly higher BC than flat-base variants of similar weight, which matters more for the longer-range varmint shooting (300+ yards on prairie dogs, for instance) where wind drift management becomes a meaningful factor in hit probability on small targets.

High velocity range, modest effective range: The BlitzKing is optimized for 3,000-4,400 fps muzzle velocities – genuinely high-velocity territory reflecting the cartridges it is most commonly loaded in, such as 22-250 Remington, 204 Ruger, and 223 Remington pushed to their performance ceiling. Despite this high muzzle velocity, the modest BCs across the lineup mean effective range tops out around 300 yards for most practical varmint hunting purposes – the bullet sheds velocity quickly due to its light weight and modest aerodynamic efficiency, which is an acceptable tradeoff given that most varmint hunting happens inside that range anyway.

Reliable feeding: The streamlined profile cycles smoothly through both bolt-action single-feed rifles and semi-automatic varmint rifles and ARs chambered in appropriate calibers, supporting the high-volume shooting style typical of organized prairie dog hunts where hundreds of rounds may be fired in a single outing.


Ballistics and Performance

G1 BCs from 0.145 to 0.270 across the core .204-inch through .243-inch lineup are typical figures for dedicated varmint fragmentation bullets, broadly comparable to the Hornady V-MAX (0.150-0.275) and Nosler Varmageddon (0.140-0.265). These modest BCs are an accepted tradeoff in this category – light weight and a soft, thin jacket that fragments aggressively does not produce a high BC, and varmint hunters generally accept this in exchange for the explosive terminal effect they are buying the bullet for in the first place.

The 55-grain .224-inch at BC 0.271 and SD 0.157 is one of the most widely used BlitzKing variants, a mainstay for 223 Remington and 22-250 Remington prairie dog and ground squirrel hunting. This is a well-established, thoroughly field-tested weight with a long track record in the varmint hunting community.

The 32-grain and 39-grain .204-inch variants at BC 0.221 and 0.287 respectively are purpose-built for 204 Ruger, one of the flattest-shooting, highest-velocity dedicated varmint cartridges available. The 39-grain’s BC of 0.287 is notably higher than the 32-grain’s 0.221 and also higher than the 40-grain .224-inch’s 0.221 – a result of the .204-inch caliber’s inherently better sectional density advantage at modest weights compared to the wider .224-inch bore, which is a legitimate aerodynamic phenomenon rather than a data inconsistency, unlike the 105-grain .264-inch figure flagged in the introduction.

The 70-grain .243-inch at BC 0.299 and SD 0.169 is the heaviest of the lineup’s mainstream varmint weights, intended for foxes and larger varmints in 243 Winchester where more retained energy at moderate range is useful while still maintaining the fragmentation-first design philosophy.

The 105-grain .264-inch at BC 0.470, as discussed above, does not fit the pattern of the rest of the lineup. A BC this high at this weight is more characteristic of a long-range hunting or match bullet than a fragmenting varmint design, and Sierra’s other 105-grain 6.5mm offerings are match or hunting bullets, not BlitzKing-branded varmint products. Handloaders interested in this specific weight and caliber should verify directly with Sierra’s current published catalog rather than relying on this figure, and this article does not recommend treating it as a standard, currently-available BlitzKing variant without that verification.

Accuracy of 0.5-0.9 MOA is solid for a varmint bullet in this price category, sufficient for the small-target, often longer-range shooting that prairie dog and ground squirrel hunting frequently demands.

Expert Ballistics Table – Sierra BlitzKing Variants

Data from Sierra specifications. BCs are G1. Verify current figures at sierrabullets.com before load development. The 105-grain .264-inch variant should be independently verified against Sierra’s current catalog – see discussion above.

Diameter (inches)Weight (grains)BC (G1)Sectional DensityApplication
.204320.2210.110Prairie dogs in 204 Ruger
.204390.2870.134Prairie dogs, ground squirrels in 204 Ruger
.224400.2210.114Prairie dogs, ground squirrels in 223 Remington
.224500.2380.142Ground squirrels, predators in 223 Remington and 22-250 Remington
.224550.2710.157Predators, larger varmints in 223 Remington and 22-250 Remington
.243550.2400.133Predators, foxes in 243 Winchester
.243700.2990.169Foxes, larger varmints in 243 Winchester
.2641050.4700.215Unverified – see note above; not consistent with rest of lineup

Comparison Bullets

The original article’s comparison set – Hornady V-MAX, Nosler Varmageddon, and Barnes Varmin-A-Tor – is correct for the varmint fragmentation category, and notably the comparison table includes Varmin-A-Tor while the surrounding text discussion does not, an inconsistency this rewrite corrects by addressing all three directly.

The Hornady V-MAX is the category’s most widely recognized and longest-established competitor, with BCs (0.150-0.275) closely matching the BlitzKing across the overlapping weight range, and a similarly extensive caliber and weight selection extending down to .172-inch for ultra-light varmint applications the BlitzKing’s .204-inch minimum does not reach. The two bullets are close enough in fragmentation performance and BC that the choice between them often comes down to brand preference, component availability, and which manufacturer’s load data is most established for a specific cartridge.

The Nosler Varmageddon offers both tipped and flat-base options across a similar caliber range, with BCs (0.140-0.265) trailing the BlitzKing and V-MAX modestly. Nosler also markets a separate Varmageddon Explosive Varmint Control line emphasizing the same fragmentation philosophy under different branding. The original article’s claim that the BlitzKing “fragments 10% more consistently” than the Varmageddon is a specific comparative claim that should be treated as a general directional observation rather than a precisely measured figure, since fragmentation consistency depends heavily on impact velocity, the specific target medium, and individual rifle/load combinations rather than being a fixed, universally reproducible percentage difference between brands.

The Barnes Varmin-A-Tor is a conventional lead-core, copper-jacketed flat-base hollow-point fragmentation design rather than a lead-free option, contrary to what might be assumed given Barnes’s broader reputation for lead-free monolithic hunting bullets like the Barnes TTSX – the Varmin-A-Tor is a distinct, separate product line built specifically for varmint fragmentation using traditional lead-core construction. It covers a somewhat narrower caliber range (.204-.257-inch) than the BlitzKing, with both designs sharing the same lead-core fragmentation approach and the same lack of lead-free compliance for restricted jurisdictions.

The Speer TNT is another conventional lead-core fragmenting varmint bullet worth considering alongside these three, rounding out the most commonly available options in this category. The Berger Varmint Explosive is a further option for handloaders comparing the full field of fragmentation-style varmint bullets across manufacturers.

Comparison Table – Polymer-Tipped Varmint Fragmentation Bullets

BulletDiameter RangeWeight RangeBC RangeConstructionLead-FreeRelative Cost
Sierra BlitzKing.204-.24332-70 gr0.145-0.270Lead core, thin jacketNoBudget-Mid
Hornady V-MAX.172-.30830-75 gr0.150-0.275Lead core, thin jacketNoBudget-Mid
Nosler Varmageddon.172-.30832-90 gr0.140-0.265Lead core, tipped/flat baseNoBudget
Barnes Varmin-A-Tor.204-.25732-85 gr0.128-0.279Lead core, copper jacketNoBudget-Mid
Speer TNT.224-.25740-75 gr0.180-0.290Lead core, thin jacketNoBudget

Applications and Practical Aspects

Prairie dogs and small varmints (.204-inch, 32-39 grains): The lightest BlitzKing weights in 204 Ruger are purpose-built for high-volume prairie dog shooting, where the cartridge’s exceptionally flat trajectory and the bullet’s reliable fragmentation combine for the dramatic visual effect that defines this style of hunting. Hodgdon H4895 and Accurate 2230 are documented powder choices for 204 Ruger at these weights. For background on the cartridge itself, see the 204 Ruger complete guide.

Ground squirrels and predators (.224-inch, 40-55 grains): This is the BlitzKing’s bread-and-butter weight range, covering both dedicated prairie dog and ground squirrel shooting and predator hunting (coyotes, depending on local regulations regarding pelt damage) in 223 Remington and 22-250 Remington. Hodgdon Varget, Hodgdon H4895, and IMR 4064 are standard choices for 223 Remington; Hodgdon CFE 223 is an additional documented option for this application. For 22-250 Remington, Hodgdon H380 and IMR 4064 are well documented. The 243 Winchester vs 22-250 Remington comparison is a useful reference for handloaders deciding between cartridges in this weight class.

Foxes and larger varmints (.243-inch, 55-70 grains): The 243 Winchester variants extend the BlitzKing’s reach to foxes and other larger varmint species where more retained energy at moderate range is useful. Hodgdon Varget and IMR 4064 remain appropriate choices for 243 Winchester at these lighter-than-typical-hunting weights. The small game precision caliber guide provides broader context on selecting between varmint cartridges for different field conditions and target species.

High-volume shooting considerations: Organized prairie dog hunts often involve firing hundreds of rounds in a single outing, which has practical handloading implications beyond simply selecting an appropriate bullet weight – case life, batch consistency for large production runs, and barrel heat management during sustained shooting all become more relevant considerations than they would be for a typical deer hunting load fired a handful of times per season. Handloaders preparing for high-volume varmint outings should consider loading in larger batches with consistent case prep to minimize variables across a long shooting day. A reliable powder measure or digital powder scale and dispenser speeds up the charge-throwing process considerably when loading hundreds of rounds for a single hunt, a Lyman Gen 6 dispenser is another option worth considering at this volume, and a dedicated progressive press can be a worthwhile investment for handloaders who shoot varmints regularly enough to justify the higher output volume over a single-stage setup.

Not appropriate for deer or big game: This bears explicit statement given how this series has flagged similar confusion in other articles – the BlitzKing’s thin jacket and low weight retention by design make it entirely unsuitable for deer or larger game, where penetration to the vitals through 8-12 inches of tissue is required. A BlitzKing fired into a deer would fragment at or near the surface, producing a shallow, non-lethal wound in most cases rather than reaching vital organs. Hunters wanting a fragmentation-adjacent but penetration-capable bullet for big game should look at genuinely different product categories entirely, such as a conventional soft-point or bonded hunting bullet.


Reloading

The BlitzKing loads similarly to other conventional varmint bullets, with standard pressure characteristics since it uses lead-core rather than monolithic copper construction.

Primers: Standard small rifle primers for most BlitzKing applications. CCI 400, CCI BR-4, and Federal 205 are reliable choices. For 243 Winchester applications using large rifle primer brass, CCI 200 and Federal 210 are standard. Remington 7-1/2 is an additional small rifle primer option documented for varmint cartridges.

Cases: Standard brass from Winchester, Remington, Hornady, and Federal are all appropriate for BlitzKing loads. Given the high-volume shooting nature of varmint hunting, case life and consistency across large batches matter more here than in typical low-volume hunting applications. Frankford Arsenal case prep tools and a quality powder trickler speed up the batch-loading process common to high-volume varmint ammunition production.

Seating depth: Start 0.010 to 0.050 inches off the lands. The BlitzKing’s hollow-point nose is somewhat sensitive to seating depth inconsistency, though less critically so than the long bearing surface monolithic bullets covered elsewhere on this site – conventional lead-core construction at these light weights is generally more forgiving of minor seating variations.

Crimp: Light to medium crimp for semi-automatic platforms and high-recoil rifles to ensure reliable feeding and prevent bullet setback during recoil. Bolt-action varmint rifles typically do not require crimping.

Velocity verification: Given the BlitzKing’s relatively low 1,600 fps activation threshold compared to conventional hunting bullets, reliable fragmentation is achievable across a wide practical range, but confirming velocity at your typical engagement distance via chronograph remains good practice, particularly for handloaders pushing toward the upper end of the BlitzKing’s stated 4,400 fps velocity range where pressure management becomes more critical.

Powder Selection by Application:

ApplicationCaliberBullet WeightRecommended Powders
Prairie dogs204 Ruger32-39 grHodgdon H4895, Accurate 2230, Hodgdon Benchmark
Ground squirrels/predators223 Rem40-55 grHodgdon Varget, Hodgdon H4895, IMR 4064
Predators22-250 Rem50-55 grHodgdon H380, IMR 4064, Hodgdon Varget
Foxes/larger varmints243 Win55-70 grHodgdon Varget, IMR 4064, Hodgdon H4350

Reloading Parameters Summary:

ParameterGuideline
Neck tension0.002-0.004 inch interference
Seating depth0.010-0.050 inch off lands
CrimpLight to medium for semi-auto/high recoil; optional for bolt-action
Minimum fragmentation velocity1,600 fps at impact
Effective rangeGenerally inside 300 yards for reliable fragmentation and hit probability
Extreme spread targetUnder 15 fps for consistent varmint accuracy

Frequently Asked Questions

Q: Is the BlitzKing’s low weight retention actually a flaw, given the original article notes it has “low weight retention to maximize shock”?

A: No – this is the intended design outcome, not a defect. Unlike hunting bullets where weight retention correlates with reliable penetration to the vitals, a varmint fragmentation bullet is specifically engineered to disintegrate as completely and quickly as possible on impact. The “shock” and visible fragmentation effect that prairie dog and varmint hunters specifically want is a direct consequence of low weight retention, thin jacket construction, and the soft lead core breaking apart rapidly. Judging the BlitzKing by hunting-bullet weight retention standards would be applying the wrong evaluation criteria entirely – it succeeds by failing to hold together, which is the opposite of what a deer hunting bullet needs to do.

Q: What is going on with the 105-grain .264-inch variant listed at BC 0.470 – is that really a BlitzKing?

A: This figure does not fit the pattern of the rest of the BlitzKing lineup and should be treated with skepticism rather than taken at face value. A BC of 0.470 at 105 grains is more typical of a long-range hunting or match-grade 6.5mm bullet than a fragmenting varmint design – for comparison, Sierra’s own 6.5mm match and hunting bullets in similar weight ranges achieve BCs in that general territory, while the BlitzKing’s other variants top out around BC 0.30 even at the heaviest mainstream weight (70-grain .243-inch). This may reflect a data entry error in the original source material, confusion with a different Sierra product line, or a discontinued variant no longer reflected in Sierra’s current catalog. Handloaders interested in a 105-grain 6.5mm BlitzKing should verify its current existence and specifications directly with Sierra before purchasing components or developing a load around it.

Q: Can the BlitzKing be used on coyotes without ruining the pelt?

A: This depends heavily on shot placement and impact velocity, and is a genuine tradeoff inherent to fragmenting bullets generally, not specific to the BlitzKing. A solid hit through the chest cavity at typical predator hunting ranges will likely produce significant pelt damage given the bullet’s fragmentation design, similar to what a Hornady V-MAX or Nosler Varmageddon would produce. Predator hunters specifically prioritizing pelt preservation often prefer bullets engineered for controlled expansion with weight retention rather than complete fragmentation – a lighter-weight conventional soft-point or a retained-weight monolithic design like the lighter Barnes TTSX or Lehigh Defense Maximum Expansion weights would be more appropriate choices for that specific priority, as would the Winchester Varmint X which is specifically positioned as a predator-weight-retention option within its own varmint-adjacent lineup.

Q: How does the BlitzKing compare to the Hornady V-MAX in practical terms – is there a meaningful difference?

A: The two bullets are close enough in BC, fragmentation behavior, and overall design philosophy that the practical difference for most varmint hunters is modest. The V-MAX has a broader caliber and weight range, extending down to .172-inch for very light, ultra-high-velocity applications the BlitzKing’s .204-inch minimum does not address, and has a longer overall market history and correspondingly larger body of accumulated field experience and load data. For hunters already invested in one brand’s load development for a specific cartridge, switching rarely offers a decisive enough advantage to be worth re-doing that work. For hunters starting fresh, either is a reasonable choice, and component availability often ends up being the deciding factor in practice.

Q: Is the BlitzKing legal to use in California or other lead-restricted areas?

A: No – the BlitzKing is a conventional lead-core bullet, not a lead-free design, and is therefore not compliant with lead ammunition restrictions in California and similar jurisdictions for the hunting applications those restrictions cover. The Barnes Varmin-A-Tor, despite sharing a manufacturer with the lead-free Barnes TTSX, is also a conventional lead-core design and does not solve this problem either. Hunters in lead-restricted areas who want a genuinely lead-free fragmentation-style terminal effect have fewer dedicated varmint-specific options than the hunting bullet category offers – the lighter weights of monolithic hunting bullets like the Barnes TTSX 50-grain or 70-grain .224-inch variants are the more realistic lead-free alternative for predator and varmint work in those jurisdictions, even though they are not purpose-built fragmentation designs the way the BlitzKing is. It is worth noting that lead restrictions in most jurisdictions apply specifically to hunting use rather than all shooting activities, so range and target shooting with the BlitzKing may remain unrestricted even in areas with hunting-specific lead bans – verify your specific local and state regulations before assuming any blanket restriction.

Q: What is the practical effective range for prairie dog hunting with the BlitzKing?

A: Given the modest BCs across the lineup (0.145-0.270 for the verified mainstream variants), most practical prairie dog and varmint hunting with the BlitzKing happens inside 300 yards, where wind drift and drop remain manageable for hitting small targets reliably. Serious long-range prairie dog shooters pushing toward 400-500+ yards and beyond typically gravitate toward higher-BC options specifically built for that extended-range application, even within the varmint bullet category, since the BlitzKing’s light weight and modest aerodynamic efficiency become limiting factors well before fragmentation reliability does at those distances.


Conclusion

The Sierra BlitzKing is a well-established, conventional polymer-tipped varmint fragmentation bullet that performs its intended job – rapid, dramatic, complete fragmentation on impact – effectively and at a competitive price point within its core .204-inch through .243-inch lineup. It competes closely with the Hornady V-MAX and modestly outperforms the Nosler Varmageddon in stated BC, with the practical choice between these three often coming down to brand preference and component availability rather than a clear performance gap. The original article’s 105-grain .264-inch variant does not fit the rest of the documented lineup and should be independently verified before being treated as a current, standard BlitzKing product.

Choose the BlitzKing if: you hunt prairie dogs, ground squirrels, or other varmints in unrestricted areas and want reliable, explosive fragmentation; you load high-volume varmint ammunition where cost-effectiveness across hundreds of rounds matters; or you already use Sierra components elsewhere and want load data continuity within the brand.

Choose something else if: you hunt in lead-restricted areas including California – neither the BlitzKing nor the Barnes Varmin-A-Tor are lead-free options, so a lighter-weight lead-free monolithic hunting bullet is the more realistic alternative for that constraint. If pelt preservation on predators is a priority, a retained-weight design rather than a fragmenting one is more appropriate. If you need a bullet for deer or larger game, the BlitzKing is entirely unsuitable – choose a conventional soft-point, bonded, or monolithic hunting bullet instead, such as the Sierra GameKing or any of the lead-free monolithics covered elsewhere on this site. For smaller-caliber varmint applications in 22 Hornet where the BlitzKing’s .204-inch minimum doesn’t apply, the Hornady V-MAX extends down to .172-inch and covers that niche; the 17 Hornet vs 22 Hornet comparison is a useful reference for handloaders considering that smaller-caliber varmint route.


Disclaimer: Reloading involves inherent risks. Always use current load data from Sierra or other published manuals. Start below maximum charges and increase gradually. The BlitzKing’s low weight retention is an intentional design feature for fragmentation, not a defect – do not use it for deer or larger game hunting where penetration to the vitals is required. Wear eye protection at all times. The author and myreloading.com are not responsible for injuries or property damage from reloading or shooting handloaded ammunition.

Have you loaded and shot the Sierra BlitzKing? Leave a comment with your load details: weight, cartridge, powder, charge, and what you observed in the field. How did it compare to a Hornady V-MAX or Nosler Varmageddon you may have used in the same caliber? If you have direct knowledge of a current 105-grain .264-inch BlitzKing product from Sierra, that information would also help clarify the data discrepancy noted in this article.


Editorial note: Originally published 2024, revised June 2026. The update flagged the original article’s 105-grain .264-inch variant (BC 0.470) as inconsistent with the rest of the BlitzKing’s documented lineup and design philosophy, recommending independent verification rather than presenting it as confirmed current data. Clarified that low weight retention is the BlitzKing’s intentional design goal rather than a limitation, correcting how this characteristic should be interpreted relative to hunting bullet standards. Corrected an inconsistency in the original article where the Barnes Varmin-A-Tor appeared in the comparison table but was not discussed in the surrounding text. Added explicit guidance on lead-free alternatives for restricted jurisdictions and pelt-preservation alternatives for predator hunters. Added FAQ covering six common questions. Applied full internal linking throughout.