392heminut Posted January 7, 2015 Report Share Posted January 7, 2015 (edited) I started loading some milsurp 7.62 brass today and the Winchester primers were really easy seating, too damn easy in my opinion! I checked the primers with my caliper and they were .210 diameter. I don't have any other brands of large rifle primers to compare, but my Winchester large pistol primers measured the same .210 and some CCI large pistol primers measured .211. If you guys have some Federal, CCI or other brand large rifle primers could you check the diameters and post it up here? I'm curious to see how other brands compare to the Winchester stuff. I've never had primers seat with so little effort and it bothers me. These are once fired cases, never been reloaded! Edited January 7, 2015 by 392heminut Quote Link to comment Share on other sites More sharing options...
Roy Posted January 7, 2015 Report Share Posted January 7, 2015 How did you remove the crimps on the primer pockets? Are you sure you didn't enlarge the pocket a little too much? Do you have any commercial cases you could try? If you have any handgun cases that use large pistol primers, you might just try to seat one of the large rifle primers into it to see if it fits. You will obviously have to remove that primer before you load that case. Quote Link to comment Share on other sites More sharing options...
Cali_Ed Posted January 7, 2015 Report Share Posted January 7, 2015 I accidently enlarged one of mine went in to easy went to the range fell out when round was engaged Quote Link to comment Share on other sites More sharing options...
guruofhotrod Posted January 7, 2015 Report Share Posted January 7, 2015 (edited) I just measured a couple of CCI #200 - came up with .2105" on my trusty Mitutoyo Digimatic caliper. Did they have a Mil type crimp on them? If so, did you ream them or swage them? Edited January 7, 2015 by guruofhotrod Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted January 7, 2015 Report Share Posted January 7, 2015 Fed GM150M .2105 Win WLP .209 CCI300 .210 Win WLRM .210 Rem 9 1\2M .210 Win WLR .210 CCI34 .2105 CCI200 .2105 ~.210 Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted January 7, 2015 Report Share Posted January 7, 2015 Just remeasured win wlp. .210 .2095 .2095 Seams to vary a little. Quote Link to comment Share on other sites More sharing options...
N Jensen Posted January 7, 2015 Report Share Posted January 7, 2015 Is it possible that the brass is not new but has been reloaded several times at max loads? If so the primmer pocket gets bigger over reloading of hot loads and eventually the primers will seat very easy without much effort at all. Quote Link to comment Share on other sites More sharing options...
392heminut Posted January 7, 2015 Author Report Share Posted January 7, 2015 As I said in the OP, the brass is once fired, never been reloaded. Most of this stuff is WWC headstamp and didn't have crimped primers. I ran the primer pocket reamer ( measures .207) through them just to avoid any priming problems and that may have enlarged some of them. I still have 1K+ that haven't been sized and decapped yet and I won't use the reamer on those when I process them. I'll probably just have to shitcan this batch! Mike, thanks for those measurements, that's basically what I was looking for. <thumbsup> Quote Link to comment Share on other sites More sharing options...
Roy Posted January 7, 2015 Report Share Posted January 7, 2015 Don't ream them unless you have to do so. If there was no crimp, reaming can do nothing good. You can use a uniformer that only works to clean up the bottom of the pocket, but you certainly do not want to make the diameter of the pocket any bigger. You might have to ditch that batch. Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted January 8, 2015 Report Share Posted January 8, 2015 What about using nail polish around the top edge of the hole. Great sealant and it free,just take it from the back of wifes makeup stash she will never know. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted January 8, 2015 Report Share Posted January 8, 2015 (edited) As I said in the OP, the brass is once fired, never been reloaded. Most of this stuff is WWC headstamp and didn't have crimped primers. I ran the primer pocket reamer ( measures .207) through them just to avoid any priming problems and that may have enlarged some of them. I still have 1K+ that haven't been sized and decapped yet and I won't use the reamer on those when I process them. I'll probably just have to shitcan this batch! Mike, thanks for those measurements, that's basically what I was looking for. <thumbsup> I have that Primer info on a chart & I couldn't post it , same info . <thumbsup> Edited January 8, 2015 by survivalshop Quote Link to comment Share on other sites More sharing options...
392heminut Posted January 12, 2015 Author Report Share Posted January 12, 2015 Well I went through the whole batch of brass with a pin punch to see which ones I could push the primers out of. Ended up scrapping about 200 out of around 800. The rest held the primers okay. Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted May 24, 2015 Report Share Posted May 24, 2015 Primer chart Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.