SKU: A436
UPC: 816874021337
MPN: 436
The Underwood 45 Win Mag 230gr FMJ ammunition delivers rifle-grade ballistic performance in a magnum pistol platform, engineered for shooters who demand serious stopping power and velocity. This cartridge exists at the intersection of handgun portability and rifle-level terminal energy—ideal for competition shooters, tactical professionals, and hunters who rely on the .45 Winchester Magnum for controlled engagement at extended distances. Each case contains 50 rounds of factory-fresh ammunition, packaged in convenient 10-box cases for range volume or duty stockpiling.
The 230-grain full metal jacket (FMJ) projectile is optimized for consistent ballistic coefficient and barrier penetration, a critical consideration for law enforcement and defensive applications where reliable performance through intermediate cover is non-negotiable. Underwood's precision loading ensures tight velocity spreads and chamber pressure consistency, allowing shooters to achieve predictable point-of-aim shifts and tight shot grouping. The FMJ construction provides superior feeding reliability in semi-automatic platforms while minimizing chamber fouling, making this round practical for high-round-count training sessions or duty deployment without frequent cleaning intervals.
This ammunition is best suited for .45 Winchester Magnum-chambered handguns, including specialized tactical platforms and competition pistols engineered for magnum cartridges. Shooters transitioning from standard .45 ACP or those building dedicated long-range pistol systems will appreciate the substantial velocity and energy gain without sacrificing the controllability of the .45 bore diameter. Store in a cool, dry location and verify firearm chambering before loading—the .45 Win Mag requires specific barrel and magazine specifications that differ from conventional .45 variants.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.