When I first found out about springing, I discovered 3 of my bushing barrel guns had the issue due to the bushings being fit too tight to the barrel. Another .0005 - .001" removed fixed the issue. EGW makes a great barrel bushing with an "angle bore" cut that helps prevent springing when the barrel is in full battery and tilted, while keeping a tighter fit to the barrel than what a traditional bushing could achieve. Same principle with a bull barrel.Cool thread and great tips, I am reworking my 1911 this winter and have re-barreled a few 2011's and never heard of "springing" I'll have to check my recent swap from a bushing barrel to a bull on the 1911 and see what it shows.
So that was today's task list, what ya doing tomorrow?Yesterday I sat down and inspected the two builds and checked initial fitment of the new parts, made a list of things to do (like a honey do list, but wayyyy more fun).
- Firing Pin Stop (fit to slide)
- Extractor (check breech to hook distance, adjust tension, fit to firing pin stop as needed)
- Ejector (EGW oversized piece, install and make clearance cuts for slide and hammer travel)
- Grip Safety (fit to frame, fit frame to safety)
- Thumb Safety (fit to sear, blend to frame)
- Slide Stop (modify lower contact area with a radius cut to give better traction when engaging, provide clearance to slide as needed so it doesn't drag on bottom of slide)
- Make clearance cut on frame just below slide stop engagement pad to increase access area to slide stop pad. Both frames have one, but they need opened up more with a ball cutter. Springfield did a good job of this on the Prodigy.
- Disconnector (EGW oversized ball head, fit to frame hole)
- Cut rear slide serrations (slick surface ground flats are not fun to grab a hold of with a 23lb recoil spring)
- Test fire (function check)
- Perform slide design/appearance cuts
- Blend slide to frame, front and rear, as needed
- Optics cuts
- Cerakote
I wouldn't stress out about ejector length too much, too long can be a problem too. Nice job on the ejectors, those oversize EGW's take it to the extreme, usually just need those for older Colts with huge gaps.Bevel on inside of ejection port on the STI didn't even factor in. Ended up trimming ejector to basically same length as the Cheely. The Atlas mags have tall feed lips. And most importantly the bullet nose has to clear the end of the barrel hood before anything can happen. So, bevel or no bevel, didn't matter after all. YMMV.
I suppose a person can find the right combo of shorter OAL rounds, lower feed lips, and a bevel to gain ejector length. But I want to be able to run any combo of my mags with any of the ammo I have.
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I'll definitely rethink using those again. A lot more work than anticipated. But they did allow a nice fit.I wouldn't stress out about ejector length too much, too long can be a problem too. Nice job on the ejectors, those oversize EGW's take it to the extreme, usually just need those for older Colts with huge gaps.