oteroman Posted August 4, 2016 Share Posted August 4, 2016 Running a Lee U-Die for sizing in a 1050. Just dropping powder no belling. I removed the powder check and installed a Lyman M-die. Loading Xtreme 230 RN at 1.240 OAL out of 100 rounds i get maybe 2 loaded rounds that fail Wilson case gage and the issue is a bulge in the middle of the brass usually. .473-.474" I assume this is Glock'ed brass?? The issue is not with any one headstamp. Is the only fix to use a Redding or Lee pushthrough sizer?? Link to comment Share on other sites More sharing options...
GregJ Posted August 4, 2016 Share Posted August 4, 2016 (edited) Are you crimping and seating with the same die? Or in separate dies? My bet is same die, and the crimp is buckling the case. I'm also running the EGW-U die, for a couple of years now, with no issues. The undersize die should take care of any bulge from previously fired cases. I've never seen the "glock bulge" in 45ACP. Edited August 4, 2016 by GregJ Link to comment Share on other sites More sharing options...
jmorris Posted August 4, 2016 Share Posted August 4, 2016 Some of our SMG's bulge the brass but a trip through one of the casepro machines and they are good to go again. Link to comment Share on other sites More sharing options...
oteroman Posted August 4, 2016 Author Share Posted August 4, 2016 Using Dillon seating die, and a Dillon crimp die. Just a light crimp. Link to comment Share on other sites More sharing options...
mike l m Posted August 5, 2016 Share Posted August 5, 2016 Can not be light crimp, I believe the crimp is .470 and the bulge should not be there. The seating should be done on one die and the crimp on another. Mike Link to comment Share on other sites More sharing options...
oteroman Posted August 5, 2016 Author Share Posted August 5, 2016 Seating and crimping is being done seperatly. The sizing die (Lee U-die) appears to be allowing the ocassional bulged (.473) brass through. Link to comment Share on other sites More sharing options...
oteroman Posted August 5, 2016 Author Share Posted August 5, 2016 Seating and crimping is being done seperatly. The sizing die (Lee U-die) appears to be allowing the ocassional bulged (.473) brass through. Link to comment Share on other sites More sharing options...
BARRYJ Posted August 8, 2016 Share Posted August 8, 2016 Sort out a hundred striker-fired brass and load those. Then sort out a hundred firing-pin fired brass and load those. See if there is any difference. Link to comment Share on other sites More sharing options...
oteroman Posted August 8, 2016 Author Share Posted August 8, 2016 Nice idea but not possible. I am reloading range pickup. I suspect the issue is from an unsupported chamber. I will put up with it versus going with a the EGW U-Die which is supposed to be tighter than the factory Lee U-Die. I shootfew 46acp. Link to comment Share on other sites More sharing options...
BARRYJ Posted August 8, 2016 Share Posted August 8, 2016 If 45 brass is like 40, you can tell the difference between a striker fired primer and a firing pin fired primer. Link to comment Share on other sites More sharing options...
oteroman Posted August 8, 2016 Author Share Posted August 8, 2016 10-4 thanks for face slap I needed that. Link to comment Share on other sites More sharing options...
jsg Posted August 9, 2016 Share Posted August 9, 2016 Are your bullets starting crooked in the seating process or do you place them very close to perfectly centered and vertical? I used to have this problem on about 8 out of 125 rounds using mixed range brass. I know the problem is not there after resizing and seating primers because I gage them all at that point and store them for later loading. In my case, it seems to be a case of the bullet not being perfectly vertical. When I take the time to have the bullet as perfectly aligned as possible immediately before it goes into the seating die (both Dillon and RCBS), the failure rate goes down to maybe 1 in 125. NOTE: Also using a Lyman M Die (minimum bell) and 200 grain Xtreme bullets. I have seen the same issue with 230 Extreme and Zero 230. Link to comment Share on other sites More sharing options...
oteroman Posted August 9, 2016 Author Share Posted August 9, 2016 Iuse a dillon 1050,with no swaeging, and no belling in the powder drop, lyman mdie after powder and using ectreme plated 230 RN. My bullets seat as close to perfect as u can get with good neck tension. Thanks Link to comment Share on other sites More sharing options...
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