Content area
Full Text
The Glock 37 is essentially a .45-caliber pistol the size of a 9mm Glock 17 and .40-caliber Glock 22. The Glock 37 fires a brand-new pistol caliber, the .45 Glock Automatic Pistol, known as the .45 Glock, or more accurately, the .45 GAP. This caliber is very similar to the .45 Automatic Colt The internal dimensions of the .45 GAP case are significantly different from the .45 Auto case. The internal case wall profile allows the .45-caliber bullets to be deeply seated without bulging the case.
The web of the .45 GAP case (near the primer and rim) is much thicker than a .45 Auto case. This allows the .45 GAP to safely operate Pistol, known as the .45 ACP or .45 Auto. The .45 GAP uses a shorter, stronger cartridge case but fires exactly the same .451-inch diameter bullets to the same velocities as the .45 Auto.
The big deal with the .45 GAP is getting .45-caliber performance and higher ammo capacity in a standard frame pistol. Glock's standard frame is much easier to securely grip than its large frame Moduli" and, the Clock 37 holds at .45 Auto +P chamber pressures. The .45 Auto has a maximum average chamber pressure of 21,000 psi. The .45 GAP and the .45 Auto +P both have maximum pressures of 23,000 psi. The 9mm and .40 S&W both have a 35,000 psi limit. The higher chamber pressure of the .45 GAP allows the 4.5-inch Clock 37 to equal the velocity, energy and more ammo than its subcompact Model 30 and Slimline Model 36. 45 GAP Cartridge
The .45 GAP is a brand new caliber, jointly developed by CCI-Speer and Glock. The .45 GAP uses a slightly rebated rim case, meaning the extractor rim has a slightly smaller diameter than the outside diameter of the case. Again, this allows the .45-caliber case to be extracted and ejected from a pistol originally designed for the 9mm. momentum of a .45 Auto fired from a five-inch barrel.
The .45 GAP does not use a trimmed .45 ACP case. The .45 GAP case is special and unique. The .45 GAP cartridge uses a .775-inch long case. In comparison, the 9mm case measures .754-inch while the .40 S&W uses a .850-inch case....