Published: 2024 | Last updated: June 2026
Introduction
The Lapua Mega is Lapua’s conventional hunting soft-point – the practical counterpart to their Lapua Scenar-L and Lapua MaxRange Target match bullets. While those designs represent Lapua’s contribution to precision competition, the Mega is what Finnish, Scandinavian, and Northern European hunters load into rifles chambered for elk, moose, and large deer before heading into boreal forest country where shots are typically under 200 yards and the animal is often large.
That hunting context matters for understanding the Mega’s design priorities. Scandinavian hunters pursuing moose (the largest deer species in the world, reaching 1,500 lbs) in dense forest typically shoot under 150 yards. Shot angles are often not ideal. The bullet needs to hold together through heavy muscle and bone. Penetration matters more than flat trajectory. High BC for wind resistance at distance is less important than weight retention through a shoulder. The Mega is designed for this scenario, not for open-country 400-yard shots on deer.
The Mega covers .264-inch (6.5mm), .308-inch, and .366-inch (9.3mm) diameters, with weights from 150 to 285 grains. The 9.3mm variant is the most specifically Scandinavian in its application – the 9.3×62 Mauser and 9.3x74R are the traditional Scandinavian moose cartridges, and the 285-grain Mega has been the standard hunting load in these cartridges for generations in Finland, Sweden, and Norway. The 6.5mm and .308-inch variants serve the global hunting market where these calibers are popular, with the Mega positioned as Lapua’s flat-base conventional soft-point for hunters who want the Lapua name and manufacturing quality in a hunting bullet.
One clarification on construction: the original article for this page described the Mega as “mechanically bonded” and claimed 90-95% weight retention. The Mega uses a controlled-expansion soft-point design with a tapered jacket rather than electrochemical or chemical bonding. It is not in the same bonded category as the Federal Trophy Bonded, Nosler AccuBond, or Federal Fusion. Weight retention is good for a conventional soft-point – typically 70-85% on hunting shots – but not the 90-95% associated with chemically bonded designs. For hunting moose and large deer at typical Scandinavian forest ranges, that weight retention is adequate and the terminal performance is well-documented in the field.
Disclaimer: Reloading is an inherently dangerous activity. Always consult current published load data from reputable sources (Lapua, 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.
Technical Characteristics
The Mega’s construction is a deliberate expression of what Lapua considers appropriate for close-to-moderate range big game hunting rather than long-range precision applications.
Soft-point nose: The exposed lead tip at the bullet’s nose initiates expansion on impact through hydraulic pressure deforming the lead into the jacket and forcing the jacket walls to mushroom outward. This is the classic cup-and-core soft-point mechanism. The expansion threshold is approximately 1,800 fps – adequate for the ranges and velocities typical of Scandinavian moose hunting from bolt-action rifles in 6.5×55 Swedish Mauser, 9.3×62 Mauser, and 308 Winchester.
Flat-base profile: The Mega uses a flat base rather than a boat-tail, contributing to the relatively modest G1 BCs of 0.319 to 0.377. For the intended application – close-range forest hunting inside 200 yards – the BC difference between a flat-base and boat-tail design is small enough to be operationally irrelevant. A moose at 100 yards in spruce forest is not a scenario where aerodynamic efficiency determines the outcome. Hunters who want Lapua manufacturing quality in a higher-BC 6.5mm hunting bullet should look at the Lapua Scenar-L – though the Scenar-L is a match bullet not designed for controlled hunting expansion – or consider non-Lapua options like the Sierra Tipped GameKing or Hornady ELD-X.
Jacket construction: The tapered copper jacket provides a gradient from thin at the nose for reliable expansion initiation to thicker at the shank for controlling the rate of expansion and providing resistance to core-jacket separation under the pressures of heavy bone impact. This is conventional cup-and-core construction executed to Lapua’s manufacturing standards, which are high. The result is consistent expansion diameter and better-than-average core retention for a flat-base soft-point, though not the chemical bonding of premium bonded designs.
Heavy nose profile: The Mega’s nose profile is deliberately blunt compared to spitzer hunting bullets. This is intentional for two reasons. A broader, heavier nose profile transfers energy more rapidly on impact, producing immediate hydraulic shock in tissue. It also produces more reliable expansion initiation at lower impact velocities – the blunter meplat creates more resistance on impact than a sharp spitzer, initiating deformation slightly earlier in the penetration sequence. For moose and elk hunting at the velocities generated by 6.5×55 Swedish Mauser or 9.3×62 Mauser at close range, this characteristic is an advantage.
Velocity and range: The Mega is optimized for muzzle velocities of 2,200 to 2,800 fps and is designed to work reliably inside 300 yards. At the cartridges it is designed for, this covers the practical hunting range in forest and mountain terrain. For hunters who regularly shoot game past 300 yards in open country, a higher-BC hunting design is more appropriate.
Ballistics and Performance
G1 BCs of 0.319 to 0.377 are honest figures for a flat-base soft-point hunting bullet optimized for close-range big game application. They are comparable to the Sierra Pro-Hunter (0.185-0.310), Remington Core-Lokt (0.200-0.300), and Federal Power-Shok (0.165-0.439) at comparable weights.
The 155-grain .264-inch Mega at G1 BC 0.377 and SD 0.318 is the standout in the lineup from a sectional density perspective. SD 0.318 at 155 grains in 6.5mm caliber is among the highest available in any conventional hunting bullet in this bore diameter. For context, the Nosler Partition 140-grain 6.5mm achieves SD 0.287, and most 140-grain 6.5mm hunting bullets in common use have SDs around 0.285-0.295. The Mega 155-grain at SD 0.318 is significantly heavier-for-caliber and penetrates correspondingly deeper through heavy muscle and bone – making it the appropriate choice for moose and large elk where penetration is the primary concern from 6.5×55 Swedish Mauser or 6.5 Creedmoor at forest ranges.
The tradeoff for SD 0.318 at 155 grains is lower velocity from a given powder charge compared to a 140-grain bullet, and BC 0.377 means the trajectory is noticeably more curved than lighter-weight, higher-BC options past 200 yards. At 150 yards in spruce forest this does not matter. At 350 yards across an alpine meadow, choose a different bullet.
The 150-grain .308-inch Mega at BC 0.319 and SD 0.226 and the 185-grain .308-inch Mega at BC 0.319 and SD 0.279 share the same BC figure – both are flat-base designs at different weights with the same basic profile. The 150-grain is a deer weight; the 185-grain at SD 0.279 provides meaningful penetration for elk and moose at the ranges the Mega is designed for. BC 0.319 at 185 grains is modest – the Nosler Partition 180-grain spitzer .308 achieves BC 0.474 – but inside 250 yards the trajectory difference is manageable and the penetration priority is maintained.
The 285-grain .366-inch Mega at BC 0.350 and SD 0.300 is the bullet’s most specialized and historically significant variant. The 9.3mm bore diameter is common in Scandinavia and Central Europe, supported by the 9.3×62 Mauser – the standard Finnish moose cartridge – and the 9.3x74R for combination guns. SD 0.300 at 285 grains provides deep, reliable penetration through the heaviest moose anatomy, and the flat-base soft-point construction at 9.3mm velocities (typically 2,400-2,600 fps from 9.3×62) produces reliable expansion and wound channels adequate for quick kills. This variant has no direct equivalent from most American bullet manufacturers in terms of caliber coverage.
Accuracy runs 0.8 to 1.2 MOA in typical hunting rifles – adequate for ethical shots at the ranges the Mega is designed for, without the precision that specialized match-grade bullet designs deliver.
Expert Ballistics Table – Lapua Mega Variants
Data from Lapua specifications. BCs are G1 values. Verify current figures on lapua.com before load development.
| Diameter (inches) | Weight (grains) | BC (G1) | Sectional Density | Application |
|---|---|---|---|---|
| .264 | 155 | 0.377 | 0.318 | Elk, moose in 6.5×55 Swedish Mauser and 6.5 Creedmoor – maximum SD in 6.5mm |
| .308 | 150 | 0.319 | 0.226 | Deer in 308 Winchester and 30-06 Springfield |
| .308 | 185 | 0.319 | 0.279 | Elk, moose in 308 Winchester and 30-06 Springfield |
| .366 | 285 | 0.350 | 0.300 | Moose, large game in 9.3×62 Mauser and 9.3x74R |
Comparison Bullets
The Mega competes directly with other flat-base conventional soft-point hunting bullets in the close-to-moderate range big game segment.
The Sierra Pro-Hunter is the most natural comparison. Both are flat-base soft-points designed for reliability at close to moderate hunting ranges. The Pro-Hunter covers a wider caliber range (.224-.458) and offers more weight options per caliber than the Mega. BC ranges are similar. Manufacturing quality from both companies is high. For the specific calibers the Mega covers, the two designs produce comparable field results on big game at typical hunting ranges. The Pro-Hunter has the advantage of wider availability in North American sporting goods stores; the Mega is more readily available in European markets and is the natural choice for hunters already using Lapua brass.
The Remington Core-Lokt is the direct North American equivalent in design philosophy. Both are flat-base soft-points with comparable BCs and similar close-range big game intent. The Core-Lokt’s tapered jacket mechanical lock provides slightly better core retention than the Mega’s conventional jacket at high-velocity close-range impacts; the Mega benefits from Lapua’s tighter manufacturing tolerances. At hunting ranges inside 250 yards on deer through moose, field results are comparable between the two.
The Federal Power-Shok occupies the budget end of the flat-base soft-point market and is the most direct cost comparison to the Mega. The Power-Shok’s lot-to-lot consistency is lower than the Mega’s. At close-range deer hunting where precision matters less, both bullets produce adequate results. The Mega’s higher manufacturing consistency makes it the better choice when accuracy at 200 yards is a requirement.
The Hornady InterLock is a direct design-philosophy competitor. The InterLock ring provides mechanical core retention equivalent to or slightly better than the Mega’s jacket design. BCs are comparable across the lineup. Both designs are close-range big game bullets with similar application ranges.
Compared to the Nosler Partition – which the original article listed as a direct competitor – the comparison is less equal than it appears. The Partition’s dual-core architecture provides mechanical rear-core retention that neither the Mega nor any other conventional soft-point can match. The Partition is significantly more expensive. For moose and elk at close forest range where the Mega’s application is strongest, the Partition’s additional penetration reliability is most relevant on very difficult shot angles. On broadside shots at 100-150 yards, the two produce comparable terminal results at a significant price differential.
The Lapua Naturalis is Lapua’s own lead-free hunting bullet for hunters in lead-free zones or those who prefer monolithic construction. Lapua’s full bullet lineup also includes the Lapua Scenar and Lapua FMJ for non-hunting applications, and the Lapua TRX as an additional lead-free option. Where lead-free is required or desired, the Naturalis is the appropriate Lapua hunting option.
Comparison Table – Flat-Base Soft-Point Hunting Bullets for Close-Range Big Game
| Bullet | Diameter Range | Weight Range | BC Range | Core Retention | Primary Market | Relative Cost |
|---|---|---|---|---|---|---|
| Lapua Mega | .264-.366 | 150-285 gr | 0.319-0.377 | 70-85% (tapered jacket) | Scandinavia / Europe | Mid |
| Sierra Pro-Hunter | .224-.458 | 55-400 gr | 0.185-0.310 | 55-75% (pressure fit) | North America | Budget-Mid |
| Remington Core-Lokt | .224-.375 | 55-250 gr | 0.200-0.300 | 65-80% (tapered jacket) | North America | Budget-Mid |
| Hornady InterLock | .224-.458 | 55-400 gr | 0.200-0.360 | 65-80% (InterLock ring) | North America | Budget-Mid |
| Nosler Partition | .224-.375 | 60-300 gr | 0.228-0.519 | Rear core 100% | North America / Global | Premium |
Applications and Practical Aspects
The Mega is a close-range big game bullet. Its application range is defined not by caliber and weight alone but by the hunting context it was designed for: forest hunting inside 200-250 yards on large, heavy game where penetration matters most.
Elk, moose (6.5mm, 155 grains): The 155-grain Mega at SD 0.318 in 6.5×55 Swedish Mauser or 6.5 Creedmoor is the Mega’s most specialized application. This weight exists specifically for Scandinavian elk and moose hunting where the 6.5×55 is the historic cartridge of choice. SD 0.318 at 155 grains provides penetration depth through moose shoulder and heavy muscle that no lighter 6.5mm bullet matches, at the cost of lower velocity and BC. For Finnish and Swedish hunters using the 6.5×55 at forest ranges, this combination of SD and proven terminal performance at moderate velocity is exactly what the cartridge and context call for. Vihtavuori N150 and Vihtavuori N160 are natural powder companions for the 155-grain in 6.5×55 Swedish Mauser, given Vihtavuori’s Finnish origins and extensive data for this combination. Hodgdon H4350, IMR 4350, Alliant Reloder 16, and Vihtavuori N550 are appropriate for North American hunters loading 6.5 Creedmoor or 260 Remington with the 155-grain.
Deer (30-cal, 150 grains): The 150-grain .308-inch Mega at SD 0.226 in 308 Winchester or 30-06 Springfield is a conventional deer load. BC 0.319 limits it to inside 250 yards in practical hunting terms, which covers the majority of forest deer hunting worldwide. Hodgdon Varget, IMR 4895, Hodgdon H4895, Alliant Reloder 15, and Vihtavuori N540 are standard powder choices for 150-grain .308-inch loads. European hunters often prefer Vihtavuori N140 as a natural Scandinavian powder pairing with Lapua bullets.
Elk, moose (30-cal, 185 grains): The 185-grain .308-inch Mega at SD 0.279 is the more interesting variant for serious big game. SD 0.279 provides genuine elk and moose penetration from 30-06 Springfield and 308 Winchester at forest ranges. The 185-grain is a non-standard weight in North American hunting, sitting between the common 180-grain and uncommon 200-grain options. Some rifles show a strong accuracy preference for this weight while others prefer the conventional 180-grain. Testing both in your specific rifle is worthwhile before committing to a season’s load. Hodgdon H4350, IMR 4350, and Alliant Reloder 19 cover 30-06 Springfield loads at this weight. Vihtavuori N150 and Vihtavuori N160 are appropriate for European hunters.
Moose, large game (9.3mm, 285 grains): The 285-grain .366-inch Mega in 9.3×62 Mauser or 9.3x74R is the Mega’s most important application and the one with the longest field record. The 9.3×62 was developed in 1905 by Otto Bock specifically for African large game, and was adopted throughout Scandinavia and Northern Europe as the standard moose cartridge. SD 0.300 at 285 grains provides deep penetration through heavy moose bone and muscle, and at 9.3×62 velocities (typically 2,360 fps with the 285-grain from a 23-inch barrel) the Mega expands reliably and consistently. The 9.3x74R is the rimmed equivalent for double rifles and combination guns common in Central and Eastern Europe. Vihtavuori N160 and Vihtavuori N165 are the reference powders for the 285-grain in 9.3×62; Hodgdon H4831SC is appropriate for North American hunters with 9.3×62 rifles.
Reloading
The Mega loads straightforwardly as a conventional flat-base soft-point. Standard dies, standard case preparation, and published data for comparable soft-point bullets all apply without modification.
Primers: Standard large rifle primers are appropriate for all Mega applications. CCI 200, Federal 210, Winchester WLR, and Remington 9-1/2 are reliable for .308-inch and 9.3mm applications. For 6.5mm cartridges like 6.5 Creedmoor and 6.5×55 Swedish Mauser, the same large rifle primers apply. Magnum primers CCI 250 or Federal 215 are not required for any Mega variant under normal conditions; standard primers with good powder ignition characteristics are sufficient for the velocity range the Mega operates in.
For Scandinavian hunters using the 6.5×55 Swedish Mauser or 9.3×62 alongside Vihtavuori N160 powder, Vihtavuori N140 is also useful for the lighter 150-grain .308-inch loads where a slightly faster burn rate is appropriate. For large magnum cases in 9.3x74R, Alliant Reloder 22 is an additional option. Cases for 9.3×62 and 9.3x74R may require a Remington 9-1/2M magnum primer in cold Nordic winter conditions to ensure reliable ignition of slow-burning powders in large cases.
Cases: Lapua brass is the natural pairing. For 9.3×62 Mauser and 9.3x74R, Lapua cases are the reference standard in European markets – well-annealed, dimensionally consistent, and designed for the pressures these cartridges generate. For 6.5×55 Swedish Mauser, Lapua brass is again the reference, though Norma and Hornady brass are also appropriate. For 308 Winchester and 30-06 Springfield, Lapua, Federal, and Winchester brass are all appropriate.
A note on 6.5×55 Swedish Mauser pressure: the original Mauser military action is rated for lower pressures than modern commercial actions. If you are loading for a vintage Swedish military rifle (m/94 or m/96), use load data specifically labeled for the original action pressure level and do not exceed it. Modern commercial 6.5×55 Swedish Mauser load data assumes a stronger commercial action.
Seating depth: Standard 0.010 to 0.050 inches off the lands. The Mega’s flat-base profile and conventional ogive are less sensitive to seating depth than high-BC secant ogive match bullets, which simplifies load development. Seat to magazine-length constraints for hunting loads.
Crimp: Apply a light roll crimp at the cannelure for high-recoiling applications. The 185-grain and 285-grain variants in heavier cartridges benefit from a crimp to prevent bullet setback during magazine cycling in bolt-action rifles with stiff springs.
Barrel twist: 1:8 to 1:9 for the 155-grain .264-inch; the longer, heavier bullet requires more spin than a standard 140-grain 6.5mm. Verify your barrel’s twist before ordering – older 6.5×55 barrels with 1:8.66 twist (220mm) stabilize the 155-grain adequately but marginally; a modern 1:8 barrel is more comfortable. Standard 1:10 for both .308-inch variants. Standard 1:14 for the 285-grain .366-inch.
Powder Selection by Application:
| Application | Caliber | Bullet Weight | Recommended Powders |
|---|---|---|---|
| Elk/moose (Scandinavia) | 6.5×55 Swedish | 155 gr | Vihtavuori N150, Vihtavuori N160, Hodgdon H4350 |
| Elk/moose | 6.5 Creedmoor | 155 gr | Hodgdon H4350, IMR 4350, Alliant Reloder 16 |
| Deer | 308 Win | 150 gr | Hodgdon Varget, IMR 4895, Alliant Reloder 15 |
| Elk/moose | 308 Win | 185 gr | Hodgdon H4895, Hodgdon Varget, IMR 4064 |
| Elk/moose | 30-06 Sprg | 185 gr | Hodgdon H4350, IMR 4350, Alliant Reloder 19 |
| Moose | 9.3×62 Mauser | 285 gr | Vihtavuori N160, Vihtavuori N165, Hodgdon H4831SC |
Reloading Parameters Summary:
| Parameter | Guideline |
|---|---|
| Neck tension | 0.002-0.004 inch interference |
| Seating depth | 0.010-0.050 inch off lands |
| Crimp | Light roll crimp for heavy recoil applications; optional for standard cartridges |
| Minimum expansion velocity | 1,800 fps at target distance |
| Extreme spread target | Under 20 fps for hunting accuracy |
| Twist – 155 gr .264 | 1:8 to 1:9; verify older 6.5×55 barrels |
| 6.5×55 pressure note | Use action-appropriate data for vintage Mauser actions |
Load data note: Lapua publishes Mega-specific data at lapua.com. For 9.3×62 and 9.3x74R applications, Vihtavuori’s load data (vihtavuori.com) is comprehensive and covers the 285-grain Mega with Finnish powders used alongside Lapua bullets throughout Scandinavia. For North American hunters, Hodgdon or Hornady manuals covering comparable soft-point bullet weights in the same calibers serve as appropriate starting references.
Conclusion
The Lapua Mega is a purpose-built close-range big game hunting bullet for the hunting context that matters most in Finland, Scandinavia, and Northern Europe: dense forest, large moose, shots inside 200 yards, and a need for penetration through heavy bone that flat-trajectory optimization cannot compensate for. The 155-grain 6.5mm’s SD 0.318 and the 285-grain 9.3mm’s SD 0.300 are the lineup’s most important specifications – they deliver the penetration depth that defines the Mega’s application range.
Outside that specific context, the Mega is a competent flat-base soft-point with Lapua’s manufacturing quality. BC figures (0.319-0.377) are honest for the design and limit effective range to inside 250-300 yards. For hunters who shoot past 300 yards on open ground, higher-BC designs from Sierra GameKing, Sierra Tipped GameKing, or Hornady ELD-X are more appropriate choices.
Choose the Mega if: you hunt moose, elk, or large deer in forest conditions inside 200-250 yards; you use 6.5×55 Swedish Mauser or 9.3×62 Mauser and want a purpose-specific bullet with a long Scandinavian field record; you want to pair Lapua bullets with Lapua brass in those cartridges; or you specifically need the 155-grain 6.5mm for maximum SD from a mild 6.5mm cartridge on heavy game.
Choose something else if: your hunting regularly involves shots past 300 yards where BC matters – the Sierra GameKing or Hornady ELD-X offer better aerodynamics. If you want bonded construction for high-velocity close-range magnum impacts where core retention under extreme conditions matters, consider the Federal Fusion, Nosler AccuBond, or Federal Trophy Bonded. If you need lead-free, the Lapua Naturalis is Lapua’s own lead-free hunting option, or the Barnes TSX and Barnes TTSX are available in 9.3mm and 6.5mm for European hunters in lead-free zones. European hunters loading for 7×64 Brenneke or similar Continental cartridges will find the Mega’s .284-inch variants absent from the current lineup – the Nosler Partition covers 7mm weights with comparable penetration philosophy.
For its intended application – Scandinavian forest hunting on large game at close range – the Mega has a field record that speaks for itself across generations of Finnish, Swedish, and Norwegian hunters.
Disclaimer: Reloading involves inherent risks. Always use current load data from published manuals. When loading for 6.5×55 Swedish Mauser in a vintage Mauser military action, confirm that your load data is rated for the original action pressure level – do not use modern commercial 6.5×55 Swedish Mauser data in a Mauser m/94 or m/96 action. 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 Lapua Mega? Leave a comment with the details: weight, cartridge, game species, range, and shot angle. The Mega is one of the most commonly used hunting bullets in Scandinavia, but firsthand English-language accounts are sparse. If you have used it on European moose, red stag, or wild boar with 9.3mm or 6.5×55, those accounts are genuinely rare in English-language reloading resources and valuable to other hunters researching it. Did it expand cleanly? Did you recover the bullet? How did it compare to other bullets you have used on similar game?
Editorial note: Originally published 2024, revised June 2026. The update corrected the original article’s description of the Mega as “mechanically bonded” with “90-95% weight retention” – the Mega uses a conventional tapered jacket soft-point design, not electrochemical bonding, and achieves typical soft-point weight retention of 70-85%. Added Scandinavian hunting context as the primary application for which the Mega was designed. Added specific discussion of the 155-grain 6.5mm’s unusual SD 0.318 and why it matters for moose and large elk. Added the 9.3×62 Mauser historical context and its significance as the traditional Finnish moose cartridge. Added the vintage 6.5×55 Swedish Mauser pressure warning for military action rifles. Added Vihtavuori as the natural Finnish powder companion to Lapua bullets. Added a full powder selection table including 9.3×62 Mauser applications. Applied full internal linking throughout.
