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460 Rowland Conversions
This cartridge gives your 45 the power of a 44 magnum. The 460 Rowland is a lengthened and beefed up case manufactured by Starline. When loaded to specification, velocities run up to 1550 feet per second using 185 gr. Bullets. Once the barrel is re-chambered for the 460 Rowland you can still shoot 45 ACP in it. The secret is in the compensation of the barrel. Using gas pressure to counter barrel/slide recoil allows you to shoot the higher velocity of the 460 Rowland while preventing damage and allowing faster follow-up shots.
As you can see by the close-up photos the brass is a bit longer than standard 45 ACP. You can still load using your 45 ACP die set-up. Just adjust the bell die and crimp die to the new longer brass length. Overall length is the same. Still fits the 1911 magazine so no frame modifications or changes are needed.
Cost to convert your 45 to 460 Rowland is $300.00 plus shipping. This includes installing and fitting a BC Armory compensator to your gun and rechambering your barrel.