Hunt & Live

Q&A · Hunting

What Types of Grain Work Best for .338 Winchester Magnum Bullets?

April 5, 2026

Quick Answer

For .338 Winchester Magnum bullets used in moose hunting, the most effective types of grain are those between 225 and 300 grains, with a focus on 250-260 grains for optimal expansion and penetration.

Grain Selection for Moose Hunting

When it comes to selecting the right grain for .338 Winchester Magnum bullets in moose hunting, it’s essential to consider the animal’s size, the distance to the target, and the desired level of expansion and penetration. Bullets weighing between 225 and 300 grains are suitable for moose, with a sweet spot in the 250-260 grain range. This weight range provides a balance between expansion and penetration, making it ideal for taking down larger game.

Bullet Types for .338 Winchester Magnum

There are several types of bullets suitable for .338 Winchester Magnum, including soft points, spitzer point, and bonded bullets. Soft point bullets expand upon impact, while spitzer point bullets maintain their shape and provide a larger wound channel. Bonded bullets, such as those from Hornady, feature a copper jacket wrapped around a lead core, ensuring reliable expansion and penetration.

Optimal Load Settings

To achieve optimal performance from .338 Winchester Magnum bullets in moose hunting, it’s essential to use the correct load settings. A good starting point is to load 250-260 grain bullets with a muzzle velocity of around 2,700-2,800 feet per second, using a powder such as IMR 4831 or H1000. This load setting will provide the necessary expansion and penetration to take down a large moose at a distance, while minimizing the risk of over-penetration and collateral damage.

338-win-mag-moose types grain work winchester magnum
Share

Find more answers

Browse the full Q&A library by topic, or jump back to the topic this question belongs to.