Underwood Ammo‘s .458 HAM’R loading (brand part no. 463) drives a 302-grain Xtreme Penetrator bullet at a listed 2,100 feet per second for hunters who need straight-line penetration on the heaviest, most dangerous game. The .458 HAM’R is a straight-wall AR-platform cartridge, giving hunters serious big-bore power in states that restrict rifle hunting to straight-wall cases. The Xtreme Penetrator is a solid, monolithic bullet rather than a traditional jacketed hollow point, machined with a flat nose and flutes that generate hydraulic force through tissue instead of relying on expansion to do the work. For .458 HAM’R shooters who want penetration over expansion, this rifle ammunition is built for that mission.
Key Specifications
- The chambering is .458 HAM’R, a straight-wall, big-bore AR-platform cartridge.
- The bullet weighs 302 grains, a heavy loading built for penetration on dangerous game.
- The bullet is a Xtreme Penetrator, a solid, monolithic design rather than a jacketed hollow point.
- Flutes machined into the flat nose generate hydraulic force through tissue, producing a large wound channel without traditional expansion.
- Because it’s solid rather than jacketed, the bullet is built for straight-line penetration on the heaviest, toughest game.
- Muzzle velocity is listed at 2,100 fps, strong performance for a 302-grain big-bore bullet.
- Cost runs about $3.48 per round, in line with premium solid-copper big-bore ammunition.
- Each box holds 20 rounds, a solid count for a hunting trip or range day.
- The retail box measures about 3.25 inches, a compact package for shelf storage.
Frequently Asked Questions
Does the Xtreme Penetrator bullet expand? No, it’s a solid, monolithic design built for straight-line penetration; the flutes generate hydraulic force through tissue instead of relying on expansion.
What states is .458 HAM’R built for? As a straight-wall cartridge, it’s a popular option in states that restrict rifle hunting seasons to straight-wall-case ammunition.
What is this load built for? Deep, straight-line penetration on the heaviest and most dangerous game, where a solid bullet outperforms an expanding one.
Buy Underwood .458 HAM’R 302gr Xtreme Penetrator
When the goal is punching straight through the toughest game, a solid, fluted bullet beats an expanding one every time, and this load is built around that philosophy. Order from our Lubbock, Texas gun shop and it ships fast to your door.
