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The .45 G.A.P. (often called the .45 "GAP") pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP, have a stronger case head to reduce the possibility of case neck blowouts, and shorter to fit in a more compact handgun. G.A.P. is an initialism for "Glock Automatic Pistol", and the .45 G.A.P. is the first commercially introduced cartridge identified with Glock.

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  1. Spec.-K

    Anyone load 45 GAP...?

    Now I know a bunch of you just rolled your eyes while reading the title, but hear me out... I've got a G37 and it shoots like a dream. Way better than my buddy's 1911 or his G21. It is just a downright smooth little thumper. So I'm considering reloading for it, but I've only got a set of RCBS...
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