The Hornady Superformance .338 Win Mag 225 gr SST 20 rounds box (Hornady part no. 82233) is .338 Winchester Magnum ammunition loaded with a 225-grain SST bullet. Hornady’s published figures from a 24-inch test barrel show 2,840 fps and 4,029 ft-lb at the muzzle, and 2,016 fps with 2,030 ft-lb at 500 yards. Superformance uses progressive propellants that Hornady says add 100 to 200 fps over conventional ammunition without extra chamber pressure, recoil or muzzle blast. The bullet is Hornady’s SST, loaded here at 225 grains in a Superformance round. It suits shooters who want the extra velocity of a Superformance load from a standard 20-round box for their .338 Winchester Magnum rifle.

Key Specifications

• Caliber is .338 Winchester Magnum, listed by Hornady as .338 Win Mag for this load.
• Bullet weight is 225 grains, the projectile mass Hornady lists for this item.
• Bullet type is SST, one of the Hornady bullets the Superformance line is loaded with.
• Muzzle velocity is 2,840 fps from a 24-inch test barrel, which is where the line’s added speed shows first.
• Muzzle energy is 4,029 ft-lb from that 24-inch test barrel, a measure of the load’s power at the muzzle.
• At 100 yards the load holds 2,662 fps, a downrange figure straight from Hornady’s table.
• Velocity at 200 yards is 2,491 fps, which shows how well the bullet holds speed at distance.
• Energy at 200 yards is 3,100 ft-lb, the figure to check when matching the load to your range.
• Propellant is a progressive Hornady Superformance powder, which the maker says gives 100 to 200 fps more than conventional ammunition.
• Quantity is 20 rounds per box, enough for a range session or a season’s worth of shots.

Frequently Asked Questions

What bullet does this .338 Win Mag load use? It uses a 225-grain SST bullet. Hornady loads its Superformance line with V-MAX, NTX, SST, CX and InterLock bullets, and this item is the SST version.

How fast is it? Hornady’s 24-inch test barrel data shows 2,840 fps and 4,029 ft-lb at the muzzle, 2,662 fps at 100 yards, 2,491 fps at 200 yards and 2,016 fps at 500 yards.

Is Superformance ammunition safe in semi-autos and lever guns? Hornady states it is safe for use in all firearm types, including semi-autos, lever guns and pump actions, and that it stays within SAAMI pressure guidelines. It adds that some gas-operated systems work better with it than others.

Buy the Hornady Superformance .338 Winchester Magnum 225gr SST, 20-Round Box

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