Underwood 460 Rowland 230gr - Jhp 20rd 10bx/cs

Underwood 460 Rowland 230gr JHP ammunition represents a premium self-defense and duty round engineered for shooters who demand maximum stopping power and reliability from their handguns. The 460 Rowland cartridge—a magnum-class conversion built on the .45 ACP platform—delivers ballistics comparable to traditional hunting rifle loads while maintaining compatibility with specially converted 1911-pattern firearms. This ammunition configuration serves law enforcement specialists, armed security professionals, and experienced civilian carriers who require barrier-blind performance in critical defensive situations.

The 230-grain Jacketed Hollow Point (JHP) bullet design is purpose-built for controlled expansion and deep penetration through common barriers—heavy clothing, intermediate cover, and vehicle glass—while maintaining terminal velocity necessary for reliable performance at extended ranges. Underwood's precision manufacturing ensures consistent case quality, charge weights, and bullet seating, critical variables that directly impact accuracy and pressure management in magnum-class loads. The hollow point cavity initiates rapid controlled expansion while the jacket retains structural integrity, preventing over-expansion that compromises penetration and under-expansion that reduces wound trauma. Each box contains 20 rounds, allowing tactical shooters to maintain substantial on-hand inventory across the included 10-box case pack.

This ammunition benefits experienced 1911 operators running Rowland-conversion-equipped pistols—a niche but dedicated segment within the tactical community—who have already invested in purpose-built firearms and understand the recoil impulse and handling characteristics of full-power magnum handgun loads. Compatibility is absolute: the 460 Rowland cartridge will not chamber in standard .45 ACP firearms, making verification of firearm specification critical before purchase. Range testing and function checks with your specific conversion pistol are strongly recommended, as individual firearms may exhibit varying velocity signatures and pressure curves. This ammunition is ideal for field testing, duty carry development, and serious defensive preparation for users whose platforms are purpose-built to handle magnum-class ballistics.