jm9x23 Posted December 14, 2006 Share Posted December 14, 2006 (edited) I am in the process of building 2 open guns on STI frames. I decided to go with STI TruBore barrels. The only difference between the guns is that one has a Les Baer slide and the other has a Caspian Slide. Both barrels were short chambered and I reamed them both to 38 super with a 38 Nonte reamer. Now for the problem One gun functions great but the other locks up when you fire a major or minor load. The shell actually locks itself into the chamber after being fired. I actually have to drop the mag and hold the slide tight with one hand and hit the frame pretty hard forward to get it to release.When I get the case out there are no scratches or bulges. I measured the case and it has a slight taper to it. I measured the chamber and it also has a slight taper(.002) from the front of the chamber to the rear. With a bore light I can see no ridges or irregularities in the chamber. I am ready to toss the barrel and start from scratch. Any Ideas? Edited December 14, 2006 by jm9x23 Link to comment Share on other sites More sharing options...
Larry White Posted December 14, 2006 Share Posted December 14, 2006 I am in the process of building 2 open guns on STI frames. I decided to go with STI TruBore barrels. The only difference between the guns is that one has a Les Baer slide and the other has a Caspian Slide. Both barrels were short chambered and I reamed them both to 38 super with a 38 Nonte reamer. Now for the problem One gun functions great but the other locks up when you fire a major or minor load. The shell actually locks itself into the chamber after being fired. I actually have to drop the mag and hold the slide tight with one hand and hit the frame pretty hard forward to get it to release.When I get the case out there are no scratches or bulges. I measured the case and it has a slight taper to it. I measured the chamber and it also has a slight taper(.002) from the front of the chamber to the rear. With a bore light I can see no ridges or irregularities in the chamber. I am ready to toss the barrel and start from scratch.Any Ideas? Too big at the chamber mouth or too small at the throat?-----Larry Link to comment Share on other sites More sharing options...
jm9x23 Posted December 14, 2006 Author Share Posted December 14, 2006 No, it seems normal. It's bigger in the rear than the mouth by .002. Link to comment Share on other sites More sharing options...
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