Published: 2024 | Last updated: June 2026
Introduction
Sierra Bullets introduced the Tipped GameKing in 2018, nearly four decades after the original Sierra GameKing established itself as a standard hunting bullet. The delay was not an oversight – Sierra is a conservative company that does not redesign proven products without a specific reason. The reason here was competitive pressure from polymer-tipped designs and a genuine opportunity to improve on the original GameKing’s ballistic efficiency without sacrificing the terminal performance that made the older bullet so trusted.
The Tipped GameKing (TGK) takes the same boat-tail, lead-core, copper-jacketed construction as the Sierra GameKing and adds a green polymer tip seated in a hollow-point cavity. That tip does two things. First, it improves the ballistic coefficient by creating a sharper, more aerodynamically consistent meplat – the flat or open tip on a conventional soft-point is a source of BC variation that the polymer tip eliminates. Second, it initiates expansion more consistently at distance and at lower impact velocities by acting as a punch that drives into the hollow-point cavity on impact, forcing the jacket outward before the lead core has time to decelerate and close the wound channel.
The practical result is a bullet with G1 BCs ranging from 0.323 to 0.545 – meaningfully higher than the equivalent Sierra GameKing weights, and competitive with purpose-built long-range hunting designs from Hornady and Nosler. The TGK is not a replacement for the GameKing in all applications – it is a more specialized tool optimized for hunters who regularly shoot past 300 yards or who want the best possible BC from a conventional lead-core design.
Caliber range currently runs from .224-inch to .308-inch diameter, covering the most popular modern hunting cartridges: 223 Remington and 22-250 Remington at the light end, 6.5 Creedmoor, 6.5 PRC, 270 Winchester, 270 WSM, and several 7mm options in the middle, and 308 Winchester and 300 Winchester Magnum at the heavier end. Weights span 64 to 180 grains. The lineup is notably narrower than the Sierra Pro-Hunter or Sierra GameKing – the TGK is focused on cartridges where high BC matters, which means fast, efficient cartridges in calibers suited to deer, antelope, elk, and bear at distance.
Technical Characteristics
The polymer tip is the defining feature, but understanding why it matters requires looking at what it replaces and what it adds.
A conventional soft-point like the Sierra GameKing has an exposed lead tip. That tip is functional – it initiates expansion on impact – but it is aerodynamically imperfect. The flat or slightly rounded meplat creates turbulence at the bullet’s nose and is a source of BC variation between individual bullets, because the lead tip is not machined to tight dimensional tolerances the way the copper jacket is. The polymer tip eliminates both problems: it gives every bullet in the box an identical, sharp nose profile, and it reduces drag by presenting a more streamlined ogive to the airstream.
The BC improvement over the equivalent GameKing is real and consistent. The 140-grain .264-inch TGK carries a G1 BC of 0.535 versus approximately 0.465 for the comparable Sierra GameKing 140-grain 6.5mm. At 500 yards from a 6.5 Creedmoor at 2,700 fps muzzle velocity, that BC difference translates to roughly 50 fps more retained velocity and about 2 inches less bullet drop. In practical hunting terms, that margin is useful insurance when conditions are not ideal – when the range estimate is slightly off, or when the wind picks up between the shot break and bullet arrival.
The hollow-point cavity beneath the polymer tip is central to terminal performance. On impact, the tip is driven rearward into the cavity, forcing the jacket walls outward from the inside. This initiates expansion more positively and at lower velocity thresholds than a conventional soft-point relies on. Sierra designs the TGK for reliable expansion at impact velocities as low as 1,800 fps, which at normal hunting cartridge velocities corresponds to extended ranges where conventional soft-points sometimes fail to open consistently. The expansion target is 1.5x to 2x the original bullet diameter.
The jacket is graduated in wall thickness – thinner at the nose to facilitate initiation, progressively thicker through the shank to control expansion rate and retain weight. Sierra’s stated goal is controlled mushrooming with adequate weight retention for reliable penetration, not violent fragmentation. The TGK is designed for medium game – deer, antelope, black bear, elk at moderate range – rather than for the maximum-expansion varmint-style terminal effect that faster-opening bullets deliver.
The boat-tail base is identical in principle to the Sierra GameKing. It reduces base drag at distance and helps maintain bullet stability through the transonic velocity range as the bullet slows approaching and below the speed of sound. Combined with the polymer tip’s BC improvement, the TGK’s aerodynamic package is among the best available in a conventional lead-core hunting bullet.
No cannelure is present on most TGK variants. This is a deliberate design choice that allows reloaders more flexibility in seating depth and eliminates the minor concentricity disruption that crimping at a cannelure can introduce. The tradeoff is that a crimp is not available as an option – bullets must be held in place by proper neck tension alone. For semi-automatic platforms or rifles with significant recoil where bullet setback is a concern, verify adequate neck tension before loading a full batch.
Neck tension during reloading should be maintained at 0.002 to 0.004 inches of interference fit, consistent with other Sierra bullet designs.
Disclaimer: Reloading is an inherently dangerous activity. Always consult current published load data from reputable sources (Sierra, Hodgdon, Hornady, Lyman) before loading any cartridge. Start at minimum charges 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.
Ballistics and Performance
The TGK’s BC range of 0.323 to 0.545 represents a meaningful step up from the original Sierra GameKing across all weights. To put those numbers in real hunting terms:
The 140-grain .264-inch TGK at BC 0.535 from a 6.5 Creedmoor pushing 2,700 fps will arrive at 500 yards with approximately 1,970 fps remaining – well above the 1,800 fps expansion threshold. Wind deflection in a 10 mph crosswind at 500 yards runs about 9.5 inches with this combination, which is manageable with a proper wind call. Compare that to a conventional 140-grain 6.5mm soft-point at BC 0.465: the same conditions produce roughly 11 inches of drift at 500 yards. That 1.5-inch difference is the practical value of the higher BC – tighter wind calls, less margin for error at distance.
The 175-grain .277-inch TGK at BC 0.545 is one of the highest-BC hunting bullets available in .270-caliber. From a 270 Winchester or 270 WSM, it is a genuinely capable long-range hunting option that extends the effective range of those cartridges meaningfully beyond what traditional .277-inch bullets achieve. The SD of 0.326 also provides strong penetration for large deer, elk, and bear.
The 180-grain .308-inch TGK at BC 0.515 and SD 0.271 is a strong long-range option for 308 Winchester and 300 Winchester Magnum hunters who need a bullet that holds its velocity past 400 yards while still providing the penetration that heavier 30-caliber bullets deliver on elk-sized game. From a 300 Winchester Magnum at 2,950 fps, this bullet arrives at 500 yards with over 2,100 fps – well above the expansion threshold with meaningful energy remaining.
Accuracy is where the TGK earns particular attention. Sierra’s consistency of manufacture, combined with the aerodynamic advantages of the polymer tip, produces a bullet that many handloaders find shoots tighter than the original Sierra GameKing in the same rifles. Groups of 0.5 to 0.8 MOA are realistic in well-tuned bolt rifles. The 130-grain 6.5mm TGK has become popular in 6.5 Creedmoor rifles specifically because it combines hunting-appropriate terminal behavior with the kind of accuracy previously associated with match bullets – a combination that was genuinely difficult to achieve before polymer-tipped hunting designs matured.
Expert Ballistics Table – Sierra Tipped GameKing Variants
Data from Sierra Bullets specifications. BCs are G1 values. Verify current figures on Sierra’s website before load development.
| Diameter (inches) | Weight (grains) | BC (G1) | Sectional Density | Application |
|---|---|---|---|---|
| .224 | 64 | 0.323 | 0.182 | Varmints, deer at moderate range |
| .243 | 90 | 0.370 | 0.218 | Deer, antelope in 243 Winchester |
| .264 | 130 | 0.510 | 0.266 | Deer, antelope – 6.5 Creedmoor standard weight |
| .264 | 140 | 0.535 | 0.287 | Deer, elk, bear – highest-BC 6.5mm hunt option |
| .277 | 140 | 0.508 | 0.261 | Deer in 270 Winchester and 270 WSM |
| .277 | 175 | 0.545 | 0.326 | Elk, large deer – maximum BC in .277 caliber |
| .284 | 150 | 0.515 | 0.266 | Deer, elk in 7mm Remington Magnum |
| .284 | 165 | 0.517 | 0.293 | Elk, bear – 7mm PRC and magnum 7mm |
| .308 | 165 | 0.458 | 0.248 | Deer, elk in 308 Winchester |
| .308 | 180 | 0.515 | 0.271 | Elk, large deer – 300 Win Mag and 30-06 |
The 64-grain .224-inch TGK at BC 0.323 is significantly more aerodynamic than the 55-grain Sierra GameKing in .224-inch and is a strong choice for extended-range varmint work from 223 Remington or 22-250 Remington with appropriate 1:8 or 1:9 twist barrels. Note that at SD 0.182, this bullet is at the lighter end of the penetration spectrum – it is well suited to varmints and light deer where rapid expansion is the priority, but not to heavy-boned large game.
Comparison Bullets
The TGK’s direct competitors are other polymer-tipped, boat-tail hunting bullets from the major manufacturers. This is a crowded category, and the differences between designs are real but nuanced.
The Hornady SST (Super Shock Tip) uses a red polymer tip and Hornady’s InterLock ring – a mechanical band pressed into the jacket that interlocks with the lead core to prevent jacket-core separation. BCs range from approximately 0.300 to 0.530 depending on weight and diameter. The SST is known for rapid, violent expansion that produces excellent wound channels on deer but has a reputation for over-expansion and reduced penetration at very high impact velocities or on heavy-boned large game. The TGK’s expansion is somewhat more controlled by design, which Sierra positions as an advantage for larger game where penetration depth matters more than maximum wound channel diameter. In terms of accuracy, the two designs are comparable in most rifles – slight preferences for one or the other in a specific barrel are common and unpredictable.
The Nosler Ballistic Tip uses a polymer tip over a boat-tail lead-core design with BCs of approximately 0.310 to 0.531. The Ballistic Tip is known for explosive expansion – it opens very rapidly, which creates dramatic effect on deer-sized game but significantly limits penetration compared to more controlled designs. At close range from a magnum cartridge hitting a deer shoulder, the Ballistic Tip can fragment rather than penetrate, which has produced both dramatic kills and occasional failure-to-reach-the-vitals complaints in the field. The TGK’s more controlled expansion rate is intentionally positioned to avoid this failure mode on medium and large game. For hunters targeting elk or bear in addition to deer, the TGK’s more controlled terminal behavior is a meaningful advantage over the Ballistic Tip.
The Hornady ELD-X (Extremely Low Drag – eXpanding) is a different category of comparison. It uses a heat-resistant polymer tip, AMP jacket with a mechanically formed profile, and is explicitly designed as a long-range hunting bullet. BCs are high – often higher than the TGK at equivalent weights – and the terminal performance is engineered for reliable expansion across a very wide velocity range. The ELD-X is a more expensive, more specialized bullet that makes sense for hunters who regularly shoot past 500 yards. For most hunters who want a high-BC hunting bullet for shots inside 400 to 500 yards, the TGK offers comparable performance at lower cost.
The Sierra Tipped MatchKing (TMK) is worth a brief mention because it causes confusion. The TMK uses an identical green polymer tip and looks very similar to the TGK, but it is a match bullet designed for accuracy, not a hunting bullet. The TMK’s jacket is optimized for consistent flight, not controlled terminal expansion. It is not a hunting bullet in jurisdictions where expanding bullets are required for hunting, and its terminal performance on game is unpredictable compared to a purpose-designed hunting projectile like the TGK.
Comparison Table – Polymer-Tipped Hunting Bullets
| Bullet | Diameter Range | Weight Range | BC Range | Expansion Character | Relative Cost |
|---|---|---|---|---|---|
| Sierra Tipped GameKing | .224-.308 | 64-180 gr | 0.323-0.545 | Controlled, moderate | Mid-high |
| Hornady SST | .224-.338 | 55-180 gr | 0.300-0.530 | Rapid, aggressive | Mid |
| Nosler Ballistic Tip | .224-.338 | 55-180 gr | 0.310-0.531 | Explosive, max expansion | Mid |
| Hornady ELD-X | .224-.338 | 85-285 gr | 0.390-0.620 | Controlled across velocity range | Premium |
| Nosler AccuBond | .224-.375 | 55-300 gr | 0.310-0.620 | Controlled, bonded retention | Premium |
For hunters who need bonded construction – situations where core separation would be a failure mode, such as raking shots on elk at close range from a magnum – neither the TGK nor its direct competitors are the appropriate tool. A bonded design like the Nosler AccuBond, Federal Trophy Bonded, or a monolithic like the Barnes TTSX provides a meaningful margin of reliability that no conventional lead-core design matches.
Applications and Practical Aspects
The TGK is purpose-built for hunters who push cartridges past 300 yards on medium to large game and want the aerodynamic efficiency of a match-grade bullet combined with hunting-appropriate terminal expansion. Here is how the weights and diameters map to realistic hunting applications.
Varmints and light deer (.224-inch, 64 grains): The 64-grain TGK at BC 0.323 is a capable extended-range varmint round from 22-250 Remington or from a fast-twist 223 Remington barrel. SD 0.182 is borderline for deer-sized game – this bullet will work on light deer at appropriate ranges and velocities, but it is not a deep-penetration option for larger animals or quartering shots. Fast powders like Hodgdon Varget, Hodgdon CFE 223, and Hodgdon H335 match well with this weight in 223 Remington. In 22-250 Remington, Hodgdon Varget and IMR 4064 are standard choices.
Deer and antelope (.243-inch, 90 grains): The 90-grain TGK at BC 0.370 and SD 0.218 is a genuine long-range deer and antelope bullet for 243 Winchester and 6mm Creedmoor rifles. BC 0.370 is significantly stronger than the Sierra GameKing 100-grain .243-inch at 0.361 despite the lighter weight, because the polymer tip closes the aerodynamic gap between the two bullets. For hunting in open terrain where 300-yard shots are realistic, the 90-grain TGK in a 243 Winchester with Hodgdon H4350 or Alliant Reloder 16 is a capable and accurate combination.
Deer, antelope, elk (6.5mm, 130-140 grains): This is the TGK’s strongest application. The 130-grain at BC 0.510 and the 140-grain at BC 0.535 cover the full range of 6.5 Creedmoor, 6.5 PRC, 260 Remington, and 6.5×55 Swedish Mauser hunting with BCs that match most dedicated long-range match bullets while delivering controlled expansion on deer through elk. The 140-grain TGK in particular has become a reference-level hunting load for 6.5mm cartridge users – it produces 0.5 to 0.8 MOA accuracy in quality barrels and handles game reliably at ranges where conventional soft-points struggle to expand. Hodgdon H4350 and Alliant Reloder 16 are the most commonly cited powders for this combination. For 6.5 PRC where case capacity is larger, Alliant Reloder 23 and Hodgdon H4831SC extend the velocity potential.
Deer, elk (.277-inch, 140-175 grains): The two .277-inch TGK weights serve quite different purposes. The 140-grain at BC 0.508 is a capable mid-weight deer bullet for 270 Winchester – flat trajectory, good wind resistance, adequate penetration on deer through bear at moderate ranges. The 175-grain at BC 0.545 is a different proposition: it has the highest BC of any weight in the TGK lineup and pushes 270 Winchester and 270 WSM into genuinely competitive long-range hunting territory. SD 0.326 at 175 grains provides elk-level penetration. This weight requires slower powders to maintain adequate velocity: Hodgdon H4831SC, Alliant Reloder 22, and Hodgdon Retumbo in 270 WSM are appropriate. In standard 270 Winchester, IMR 4831 and Hodgdon H4831SC are the standard choices for heavy bullets.
Deer, elk (7mm, 150-165 grains): The two 7mm TGK weights in .284-inch diameter cover the 7mm Remington Magnum, 7mm PRC, 7mm WSM, and 7mm-08 Remington range. The 165-grain at BC 0.517 and SD 0.293 is the stronger penetrator of the two and a capable elk bullet in any of those cartridges. In 7mm Remington Magnum with Alliant Reloder 22, Hodgdon H4831SC, or IMR 7828 this combination is a proven long-range elk load.
Deer, elk (.308-inch, 165-180 grains): The two .308-inch TGK weights serve 308 Winchester, 30-06 Springfield, 300 Winchester Magnum, and 300 WSM hunters. The 165-grain at BC 0.458 is the standard hunting weight – adequate for deer and elk with good velocity retention. The 180-grain at BC 0.515 is the better choice for large or heavy-boned game at extended ranges, where its combination of retained velocity and SD 0.271 provides sufficient terminal energy and penetration. Powders like Hodgdon H4350, IMR 4350, and Alliant Reloder 19 work well with 165-grain loads in 308 Winchester and 30-06 Springfield. For the 180-grain in 300 Winchester Magnum, Hodgdon H4831SC, Alliant Reloder 22, and Alliant Reloder 26 are appropriate choices.
Reloading
The TGK loads like a conventional boat-tail bullet in most respects, with a few specific considerations driven by the polymer tip and the absence of a cannelure on most variants.
Primers: Standard primers are appropriate for most TGK applications. For smaller cartridges in .224 and .243 caliber, CCI 400, Federal 205, and Winchester WSR are reliable choices. For larger cartridges in 6.5mm through .308-inch, CCI 200, Federal 210, Winchester WLR, and Remington 9-1/2 cover the standard large rifle applications. For magnum cartridges with slow powders or cold-weather use, magnum primers like CCI 250, Federal 215, or Remington 9-1/2M improve ignition consistency. For 223 Remington loads in AR-platform semi-automatic rifles, use the CCI No. 41 mil-spec primer with its harder cup to prevent slam-fire.
Cases: Standard brass from Lapua, Federal, Winchester, Hornady, and Nosler is appropriate. Lapua brass is the preference for long-range applications where case consistency contributes to small extreme spreads in velocity. For 6.5 Creedmoor, Hornady and Lapua are both well-regarded. For 300 Winchester Magnum and 7mm Remington Magnum, Federal and Winchester are widely used without issues.
Seating Depth: The TGK’s polymer tip creates one important seating depth consideration: the tip can be crushed if seated too aggressively, and a deformed tip defeats part of the purpose of the design. Use a seating die with adequate clearance at the bullet nose – most standard seating plugs will contact the ogive below the tip and seat without issue, but verify before committing to a full batch. Start at 0.020 to 0.040 inches off the lands and test for accuracy. Many rifles show strong accuracy preferences in a narrow seating depth range with high-BC bullets, so a ladder test across 0.010-inch increments is worthwhile if precision is the goal.
Crimp: As noted above, most TGK variants have no cannelure. Do not crimp these bullets. Rely on proper neck tension – 0.002 to 0.004 inches interference fit – to hold the bullet in place. If you are loading for a semi-automatic platform and concerned about bullet setback, verify neck tension with a bullet pull gauge rather than applying a crimp that will damage the bullet’s bearing surface.
Barrel Twist: The TGK’s higher BC weights, particularly the 140-grain 6.5mm and 175-grain .277-inch, require adequate twist to stabilize fully. Sierra recommends 1:8 for the 130- and 140-grain 6.5mm variants, which matches the standard twist rate of 6.5 Creedmoor factory barrels. The 64-grain .224-inch needs 1:8 or 1:9 – a 1:12 twist barrel common in older 223 Remington rifles will not stabilize this bullet. Confirm your barrel’s twist rate before ordering.
Powder Selection by Application:
| Application | Caliber | Bullet Weight | Recommended Powders |
|---|---|---|---|
| Varmints/deer | 223 Rem | 64 gr | Hodgdon Varget, Hodgdon CFE 223, Hodgdon H335 |
| Deer/antelope | 243 Win | 90 gr | Hodgdon H4350, Alliant Reloder 16, IMR 4064 |
| Deer/elk | 6.5 Creedmoor | 130-140 gr | Hodgdon H4350, Alliant Reloder 16, Alliant Reloder 23 |
| Deer/elk | 270 Win | 140 gr | Hodgdon H4350, IMR 4350, Alliant Reloder 19 |
| Elk/large deer | 270 Win/WSM | 175 gr | Hodgdon H4831SC, IMR 4831, Alliant Reloder 22 |
| Deer/elk | 7mm Rem Mag | 150-165 gr | Alliant Reloder 22, Hodgdon H4831SC, IMR 7828 |
| Deer/elk | 308 Win | 165 gr | Hodgdon Varget, IMR 4064, Alliant Reloder 15 |
| Elk/large game | 300 Win Mag | 180 gr | Hodgdon H4831SC, Alliant Reloder 22, Alliant Reloder 26 |
Velocity and Expansion: The 1,800 fps expansion threshold means the TGK is reliable at distance – but confirm by calculating downrange velocity at your maximum intended hunting distance. At typical hunting cartridge velocities, this threshold is not reached until 500 to 600 yards for most caliber and weight combinations, which is well past the practical ethical range for most hunters.
Reloading Parameters Summary:
| Parameter | Guideline |
|---|---|
| Neck tension | 0.002-0.004 inch interference |
| Seating depth | 0.020-0.040 inch off lands – start here, test |
| Crimp | Not applicable – no cannelure on most variants |
| Minimum expansion velocity | 1,800 fps at target distance |
| Extreme spread target | Under 15 fps for hunting accuracy |
| Storage | Cool, dry, away from tip deformation risk |
Load data note: All charge weights must come from current published manuals – Sierra, Hodgdon, Hornady, or Lyman. Never rely on unverified online sources as primary load data. Start at the published minimum and work up in 0.5-grain increments while monitoring for pressure signs: flattened primers, sticky extraction, cratered primer pockets, or any change in felt recoil are all signals to stop and reduce the charge.
Conclusion
The Sierra Tipped GameKing is the right choice when you want the terminal behavior of a conventional lead-core soft-point combined with the aerodynamic performance of a match-grade bullet. It fills a genuine gap between the original Sierra GameKing – which is a proven short-to-moderate-range hunting bullet – and purpose-built long-range designs that sacrifice terminal predictability for maximum BC.
The TGK makes most sense for hunters shooting 6.5 Creedmoor, 6.5 PRC, 270 Winchester, 7mm Remington Magnum, 300 Winchester Magnum, or similar cartridges at ranges between 200 and 500 yards on deer, antelope, elk, and black bear. It delivers genuine accuracy advantages over the Sierra GameKing and more controlled expansion than the Nosler Ballistic Tip or Hornady SST at the high-velocity end of the range.
Choose the Tipped GameKing if: you shoot past 300 yards on medium to large game, you want the best BC available from a conventional lead-core Sierra design, you want more controlled expansion than the Ballistic Tip or SST on elk and bear, and you do not need the absolute weight retention of a bonded or monolithic bullet.
Choose something else if: your shots are consistently inside 200 yards in heavy cover – at that range the Sierra GameKing or Sierra Pro-Hunter deliver essentially identical terminal performance at lower cost. If you need bonded construction for raking shots on heavy game, look at the Nosler AccuBond or Federal Trophy Bonded. If you need lead-free for a restricted zone, you need a monolithic like the Barnes TSX or Barnes TTSX. If you are shooting past 600 yards on game, the Hornady ELD-X or a purpose-built extreme long-range design closes the remaining aerodynamic gap that the TGK does not cover.
The TGK is a carefully considered product from a manufacturer with six decades of hunting bullet experience. It earns its place in a handloader’s component cabinet when the application fits.
Disclaimer: Reloading involves inherent risks. Always use current load data from published manuals. Never mix data from different sources for the same load. Start below maximum charges and increase gradually. Wear eye protection at all times. The author and myreloading.com are not responsible for injuries or property damage resulting from reloading or shooting handloaded ammunition.
Have you hunted with the Sierra Tipped GameKing? Leave a comment with the specifics: bullet weight, cartridge, game animal, estimated range, and what you observed on impact. Did expansion meet expectations at long range? Did the bullet hold together on a close-range shot at magnum velocity? Did it perform differently on elk versus deer? Honest field reports – including the ones where the result was not what you hoped for – help other hunters make better-informed decisions. Marketing claims are easy to find; real experience from real hunters is not.
Editorial note: Originally published 2024, revised June 2026. The update rewrote all sections with practical field context, expanded the comparison section to cover the Hornady ELD-X and Nosler AccuBond in addition to direct competitors, added specific discussion of the polymer tip’s mechanical role in expansion and BC improvement, added a full powder selection table by cartridge and application, included seating depth and twist rate guidance specific to the TGK’s design requirements, clarified the Tipped MatchKing versus Tipped GameKing distinction, and applied full internal linking throughout.
