Underwood ammunition in .475 Linebaugh (brand part no. 651) is a hunting-handgun load built for deep penetration on tough game. Underwood builds this load from consistent, quality-checked components for dependable performance shot after shot. At the heart of this load is the 300 gr bullet with an Xtreme Penetrator design, matched to the .475 Linebaugh platform shooters already run. In our handgun ammunition lineup, this is the Underwood load built for that job.

Key Specifications

• The caliber is .475 Linebaugh, a caliber that has taken game across North America for generations.
• The bullet weighs 300 gr, sized for the terminal performance this load is built around.
• The projectile is an Xtreme Penetrator design, designed for reliable expansion on game.
• Muzzle velocity is rated at approximately 1600 fps, for a flatter path to the target and more delivered energy.
• Each box holds 20 rounds, enough to confirm zero and still have rounds left to shoot.
• Cases ship 10 boxes to a case, a convenient bulk quantity for high-volume shooters.
• Cost works out to about $3.88 per round, keeping practice sessions affordable.
• This is a centerfire cartridge, ignited by a replaceable primer rather than a rimfire priming ring.
• The bullet is a solid, non-expanding penetrator, engineered to drive straight through heavy muscle and bone for a full-diameter wound channel instead of mushrooming on impact.

Frequently Asked Questions

Does this bullet expand on impact? No, the Xtreme Penetrator is a solid, non-expanding design built to drive straight through deep muscle and bone rather than mushroom, maximizing penetration on tough, heavy game.

How many rounds come in a box? Each box holds 20 rounds of .475 Linebaugh.

How fast does this .475 Linebaugh load run? It’s rated at approximately 1600 fps at the muzzle, giving a sense of the energy and trajectory to expect.

Buy the Underwood .475 Linebaugh 300 gr Xtreme Penetrator, 20-Round Box

Stock up before the next range trip or hunt, and let the ammunition be the one thing you don’t have to think about. Order from our Lubbock, Texas gun shop and it ships fast to your door.