I just picked up a tisas B9R with the intention of it being a project gun. I have built one government sized 1911 from parts in .45 already and had a good time working on that. It is a basically a GI model but I radiused the frame and put a beavertail grip safety on it before fitting everything. It feeds hollowpoints and about anything I have tried to feed it after getting good mags and tweaking a few things.
The new gun, my intentions are to try my hand at bobtailing and checkering the frame and then probably changing the sights and tweaking whatever else needs it. I don't know that it will ever become a carry gun, but I would like it to be able to feed JHP. Basically I want to build a carry gun, whether it ever ends up being one or not.
Out of the box without shooting it, it feeds 115 grain FMJ 100% (2 mags worth by hand, cycled slow or fast). It will not even think about feeding 124 grain federal punch either slingshot, or slow feed. They nose dive and get solidly caught on the bottom edge of the feed ramp.
I have researched the usual culprits on that, but I am noticing something I haven't encountered before. The breech face is shaving a significant amount of brass on the side opposite the extractor hook. Is this a sign the extractor is too tight? What else could cause this?
I have a kuhnhausen 1911 shop manual stashed here somewhere I need to dig out. Is it still mostly relevant to a gun with a ramped barrel? Is there a better reference to use on these guns?
The new gun, my intentions are to try my hand at bobtailing and checkering the frame and then probably changing the sights and tweaking whatever else needs it. I don't know that it will ever become a carry gun, but I would like it to be able to feed JHP. Basically I want to build a carry gun, whether it ever ends up being one or not.
Out of the box without shooting it, it feeds 115 grain FMJ 100% (2 mags worth by hand, cycled slow or fast). It will not even think about feeding 124 grain federal punch either slingshot, or slow feed. They nose dive and get solidly caught on the bottom edge of the feed ramp.
I have researched the usual culprits on that, but I am noticing something I haven't encountered before. The breech face is shaving a significant amount of brass on the side opposite the extractor hook. Is this a sign the extractor is too tight? What else could cause this?
I have a kuhnhausen 1911 shop manual stashed here somewhere I need to dig out. Is it still mostly relevant to a gun with a ramped barrel? Is there a better reference to use on these guns?