Shortening a Ruger GP100
- Thread starter 7.62mm
- Start date
pageophile
CGN frequent flyer
- Location
- Edmonchuk, AB
Many revolvers can be chopped, drop Gunar a line at ARMCO (see the link at the top of the page since he's a site sponsor) for more details. Or do a search for "chopped" in the pistols section for more info.
- Location
- North-Central Quebec
Very nice work for a guy who`s not a gunsmith. The machining work was top notch.
However, cutting the forcing cone with a boring bar instead of the required reamer is a big no-no, and then not using the correct forcing cone depth gauge to know how deep to stop cutting.
The other mistake can be easily corrected, the cylinder gap is way too narrow. At .0015 and even at .003, the cylinder will start sticking after firing a few dozen wadcutter lead rounds. It needs to be cut to about .0065", but anything between .006" and .007" is OK, with .005 being the absolute minimum. The kit to do all this work is readily available from Brownell`s.
However, cutting the forcing cone with a boring bar instead of the required reamer is a big no-no, and then not using the correct forcing cone depth gauge to know how deep to stop cutting.
The other mistake can be easily corrected, the cylinder gap is way too narrow. At .0015 and even at .003, the cylinder will start sticking after firing a few dozen wadcutter lead rounds. It needs to be cut to about .0065", but anything between .006" and .007" is OK, with .005 being the absolute minimum. The kit to do all this work is readily available from Brownell`s.
Last edited:
- Location
- North-Central Quebec
But we never answered 7.62`s question.
Yes, it can be done by a qualified pistolsmith. And it`s a lot easier than on that S&W because the GP-100 doesn`t have that raised sight ramp so it can be shortened by the front. I usually do them at 108mm. The three extra mm give me breathing room with the sticklers at the CFC. The barrel needs to be cut to the desired length, recrowned, sight slot milled and the worked area polished (and re-blued in the case of a blued gun).
Yes, it can be done by a qualified pistolsmith. And it`s a lot easier than on that S&W because the GP-100 doesn`t have that raised sight ramp so it can be shortened by the front. I usually do them at 108mm. The three extra mm give me breathing room with the sticklers at the CFC. The barrel needs to be cut to the desired length, recrowned, sight slot milled and the worked area polished (and re-blued in the case of a blued gun).
Last edited:
