Why choose .338 Lapua over .300 Win Mag for hunting?

Long-Range Performance

The .338 Lapua outperforms the .300 Win Mag in terms of effective range and energy retention. With a 250-grain bullet, the .338 Lapua can deliver over 1,800 ft-lbs of energy at 1,200 yards, while the .300 Win Mag tops out at around 1,100 ft-lbs at 800 yards. This is due to the .338 Lapua’s larger case capacity and heavier bullets.

Penetration and Expansion

The .338 Lapua’s larger diameter and heavier bullets result in deeper penetration and more consistent expansion, making it better suited for hunting large game such as elk and moose. A study by Hornady found that a 250-grain .338 Lapua bullet expanded to 0.8-1.0 inches in diameter after penetrating 18 inches of ballistic gel, while a 180-grain .300 Win Mag bullet expanded to 0.5-0.7 inches after 12 inches of penetration.

Practical Considerations

While the .338 Lapua may be more effective at long range, it’s worth noting that the .300 Win Mag is still a capable cartridge for hunting within 500-600 yards. Additionally, the .338 Lapua is generally more expensive than the .300 Win Mag, and its longer case length can make reloading more challenging. However, for hunters who regularly pursue game at extended ranges, the .338 Lapua’s superior performance and deeper penetration make it a worthwhile investment.