Underwood Ammo 452 Maximum Expansion .300 Blackout 194gr Solid Monolithic - Box or Case

The Underwood Ammo 452 Maximum Expansion is a subsonic .300 Blackout rifle load built around a heavy 194 grain Solid Monolithic bullet engineered by Lehigh for controlled, maximum-diameter expansion on impact. Designed for hunting and personal defense, this round leaves the barrel at 1025 fps and delivers 453 ft lbs of muzzle energy, producing a quiet, hard-hitting report well-suited to suppressed rifle platforms.

The monolithic copper bullet is paired with a boxer-primed nickel-plated brass case for smooth feeding, reliable extraction, and corrosion resistance in the field. Rated for medium game and varmint applications, the Maximum Expansion design deploys razor-sharp petals held at the largest possible diameter to maximize cutting surface and terminal performance. This load is optimized for pistol-length .300 Blackout barrels and is a proven choice for hunters and defensive shooters looking for a subsonic round with serious stopping power.

Your purchase options:

• Box - 20 Rounds
• Case - 200 Rounds (10 Boxes)