My Ruger 1911 would choke on loads that fed every time through a Springfield XDm. I had loaded them a little too long and at least once in every magazine they would hang up on the feed ramp halfway into the chamber. And this wasn't a "quick rack the slide" clearance, either, sometimes I had to really haul back on the slide with all my might to clear it. A couple of times I had to tap the front of the slide on a wooden bench to get it loose.
I could take the bullet that jammed the Ruger, bury it somewhere in the Springfield's magazine and it would feed with no problems. Come to think of it, that Springfield's been 100% since the first shot - no failures to feed, fire, extract and eject at all. That one sits by the bed with 14 rounds ready to go.
Seating the bullets about .1" deeper solved the problem with the Ruger but it made me realize how even 1/10th" in ammo length jammed it up.
Had a Colt Series 70 standard 1911A1 that broke a collet finger, that jammed the slide up solid. Had some stovepipes with the Series 70 as well before a gunsmith lowered the ejection port.
A box stock "Colt Gov't Model" my father bought in 1969 was 100% but that was never fed anything but standard 230 FMJ ball ammo.
had exactly the same thing happen between a ruger and springfield. The ruger did not like the length of the reload. Shoot it in a springfield, no issue. at to those collet fingers, first thing i did upon tripping accross a series 70mark5 a few years ago was remove that finger collet and put a regular collet in it.
