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9,194 Posts
.45 Super in a 1911.....
IMHO, any 1911 that shoots the .45super cartridge that throws the cases 10 ft. from the shooter, seems excessive. A gun that throws the brass 10 feet away in ANY 1911, in any caliber, is more often than not, exhibiting excessive slide velocity. A 1911 shooter that uses a caliber of ammo that creates excessive slide velocity means the slide slam shut harder than necessary when the gun cycles. Often times, this will cause problems with sight tracking, and when the slide slams shut, the muzzle may dip. When firing fast controlled pairs, if the second shot is 4-6" lower than the first shot, the muzzle may be dipping from the slide slamming closed. If it was my 1911 gun, I would increase the main spring to a 26# or possibly heavier to reduce the slide velocity to a more acceptable level. I built a 1911 Commander in .38 super, and the hot reloads I made for the gun was causing the brass to eject about 8-9ft. away. I ended up using a 26# mainspring, and the gun functioned very well and the brass ejected in the 4-6ft. range. The amount of energy required to cock the hammer of a 1911 with a heavier mainspring will effectively reduce the slide velocity.....however there are many variables that affect slide velocity, such as how tight the gun locks up, how tight the slide fit, using a flat firing pin stop plate, etc. But I honestly believe any 1911, (which uses the "short recoil system") would be benefitted by a slide velocity that ejects the cases no more than 4-6 feet...… Using a polymer recoil shock buffer should not be necessary with lower slide velocity, and recoil buffers may tear and cause the gun to jam.....I used them in USPSA competition and found this out the hard way!
I would not use a shock buff for a self defense gun.....
IMHO, any 1911 that shoots the .45super cartridge that throws the cases 10 ft. from the shooter, seems excessive. A gun that throws the brass 10 feet away in ANY 1911, in any caliber, is more often than not, exhibiting excessive slide velocity. A 1911 shooter that uses a caliber of ammo that creates excessive slide velocity means the slide slam shut harder than necessary when the gun cycles. Often times, this will cause problems with sight tracking, and when the slide slams shut, the muzzle may dip. When firing fast controlled pairs, if the second shot is 4-6" lower than the first shot, the muzzle may be dipping from the slide slamming closed. If it was my 1911 gun, I would increase the main spring to a 26# or possibly heavier to reduce the slide velocity to a more acceptable level. I built a 1911 Commander in .38 super, and the hot reloads I made for the gun was causing the brass to eject about 8-9ft. away. I ended up using a 26# mainspring, and the gun functioned very well and the brass ejected in the 4-6ft. range. The amount of energy required to cock the hammer of a 1911 with a heavier mainspring will effectively reduce the slide velocity.....however there are many variables that affect slide velocity, such as how tight the gun locks up, how tight the slide fit, using a flat firing pin stop plate, etc. But I honestly believe any 1911, (which uses the "short recoil system") would be benefitted by a slide velocity that ejects the cases no more than 4-6 feet...… Using a polymer recoil shock buffer should not be necessary with lower slide velocity, and recoil buffers may tear and cause the gun to jam.....I used them in USPSA competition and found this out the hard way!