Prebaned Posted November 10, 2015 Share Posted November 10, 2015 The gun is a coworkers new 1911 loaded Springfield. Load is 230gr. plated over 4.7gr Titegroup. What's the deal with the mark on the right side. Everyone gets the mark. Sent from my SAMSUNG-SM-G890A using Tapatalk Link to comment Share on other sites More sharing options...
DougM Posted November 10, 2015 Share Posted November 10, 2015 As a wild guess, I'd speculate that it is a mark from his ejector. Any issues with the brass ejection? What is the ejection pattern? More to the front or to the side and/or back? Finally, are you sure the marks aren't happening during the reloading process? Link to comment Share on other sites More sharing options...
Intel6 Posted November 10, 2015 Share Posted November 10, 2015 That is a step on the surface of the breach face that wasn't machined off correctly. When the round fires it slams back against the breach face and gets the mark. It is usually on the brach face opposite the extractor and can be hidden by dirt and brass residue. Wipe off the breach face and look closely. Link to comment Share on other sites More sharing options...
RPatton Posted November 10, 2015 Share Posted November 10, 2015 That is a step on the surface of the breach face that wasn't machined off correctly. When the round fires it slams back against the breach face and gets the mark. It is usually on the brach face opposite the extractor and can be hidden by dirt and brass residue. Wipe off the breach face and look closely. +1 My brother has a Springfield that has this exact issue. He has had that gun for at least 12 years so apparently Springfield has no plans to fix that issue. He took it to a machinist who was VERY reluctant to try and flatten the breach face since it would have to be done from the muzzle end of the slide with a very long and unsupported mill, which he did not have. I suppose a REAL gunsmith could fix it but I would be selective about who was going to do it. Link to comment Share on other sites More sharing options...
bwxmas Posted November 14, 2015 Share Posted November 14, 2015 Looks like a stripping mark to me. Though I do not get them. All you have to do is mark the top round with a sharpie at 12:00, and when fired, it will show you where the mark came from. lLeft, right, top, bottom.. Link to comment Share on other sites More sharing options...
BASE772 Posted November 14, 2015 Share Posted November 14, 2015 That is a step on the surface of the breach face that wasn't machined off correctly. When the round fires it slams back against the breach face and gets the mark. It is usually on the brach face opposite the extractor and can be hidden by dirt and brass residue. Wipe off the breach face and look closely. This Link to comment Share on other sites More sharing options...
noylj Posted November 15, 2015 Share Posted November 15, 2015 The important point is that it isn't a critical issue. An inspection of the breech face will tell you if that is what the issue is. If you/your friend can't stand it, call the company. Link to comment Share on other sites More sharing options...
magpulled Posted November 17, 2015 Share Posted November 17, 2015 I've picked up range brass with this mark and have found that most won't case gage in my Dillon gage. Seems to screw up the rim enough to keep it from passing. Link to comment Share on other sites More sharing options...
zzw26n Posted November 17, 2015 Share Posted November 17, 2015 And they are very difficult to get through a Case-Pro also, always hang up during processing. Link to comment Share on other sites More sharing options...
PatJones Posted November 19, 2015 Share Posted November 19, 2015 That is a step on the surface of the breach face that wasn't machined off correctly. When the round fires it slams back against the breach face and gets the mark. It is usually on the brach face opposite the extractor and can be hidden by dirt and brass residue. Wipe off the breach face and look closely. This.Not an issue, ignore it. This is common with many 1911s. Link to comment Share on other sites More sharing options...
rustybayonet Posted December 6, 2015 Share Posted December 6, 2015 I was cleaning some range brass yesterday and found a batch of cases with that mark. Being the range has mostly plinkers and defensive shooters, I would think once fired brass, so this would agree with the firearm creating the mark. Link to comment Share on other sites More sharing options...
RPatton Posted December 7, 2015 Share Posted December 7, 2015 If you don't want your brass to look like this, look at the breechface before you buy. If you don't reload then it doesn't matter. Link to comment Share on other sites More sharing options...
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