Springfield Armory XD 45GAP

XD Pistols 45GAP

Springfield XD's in 45GAP. The .45 GAP is based on the .45 ACP pistol cartridge, but is shorter--the same overall length as a 9 mm Luger or .40 S&W and uses a small-pistol primer like the 9mm Luger instead of a large-pistol primer like the .45 ACP. The .45 GAP operates at a higher pressure than the .45 ACP (the same as .45 ACP +P) to make up for the smaller chamber volume. The .45 GAP produces ballistics at least equal to the standard .45 ACP loadings but in a significantly shorter cartridge. It was first believed that the traditional .45 ACP loading of a 230-grain bullet at 830 ft/s would not be possible in the .45 GAP, but careful gunpowder selection on the part of ammunition manufacturers has realized that standard. The reduced case capacity of the .45 GAP means that the large 230 bullet will only match the standard pressure .45 ACP load. .45 ACP +P loads will exceed the performance, and the .45 GAP is not practical with the heavier 260 grain bullets sometimes found in .45 ACP.