bowhunter-tw Report post Posted October 7 Anybody seen a primer do this? Looks like two little pin holes at the 5 and 7 oclock position where gas escaped past the primer. Heavy bolt lift and ejector mark at the 12 o clock Share this post Link to post Share on other sites
Mike S Report post Posted October 7 Winchester primers? Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 7 Yes, they seem to show some signs of exposure to moisture. Figured either they will go off or not. But would not see an increase in pressure Share this post Link to post Share on other sites
Lucafu1 Report post Posted October 7 5 minutes ago, Mike S said: Winchester primers? Doesn't look like it unless they changed from brass color. Share this post Link to post Share on other sites
Couzer Report post Posted October 7 Looks like hot loads according to the ejector mark. 1 Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 7 10 minutes ago, Lucafu1 said: Doesn't look like it unless they changed from brass color. They are winchester primers. Older ones from the condition of the box and logo Share this post Link to post Share on other sites
Lucafu1 Report post Posted October 7 1 hour ago, bowhunter-tw said: They are winchester primers. Older ones from the condition of the box and logo Wow. Good to know. I've only seen brass colored. Thanks! Share this post Link to post Share on other sites
Mike S Report post Posted October 7 Winchester has gone back and forth with nickel plating since the 90's. They had a run of bad ones a few years ago that pinholed. 1 Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 7 27 minutes ago, Mike S said: Winchester has gone back and forth with nickel plating since the 90's. They had a run of bad ones a few years ago that pinholed. Would a pinholes primer also exhibit false over pressure symptoms? The other loads of the same charge and primers did not show pressure signs. Share this post Link to post Share on other sites
Mike S Report post Posted October 7 Wouldn't think so, it's actually bleeding off pressure. That is still a pretty warm load, or soft brass based on the ejector swipe. Was it the same make case as the others? Maybe more powder in that one case? I'd back off on the charge weight. Did it pit the bolt face? Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 7 1 hour ago, Mike S said: Wouldn't think so, it's actually bleeding off pressure. That is still a pretty warm load, or soft brass based on the ejector swipe. Was it the same make case as the others? Maybe more powder in that one case? I'd back off on the charge weight. Did it pit the bolt face? I will go back and double check, but should be same headstamp, dont think it pitted the bolt face, and I am using a frankford intellidropper, which has been pretty consistent. Maybe that case had more somehow. Share this post Link to post Share on other sites
PRDATR Report post Posted October 7 Did you chrono the load? Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 7 15 minutes ago, PRDATR said: Did you chrono the load? I did, unfortunately I cant remember now if it errored on that one or velocity was inline with the others. All the loads that read were on par with one another 1 Share this post Link to post Share on other sites
PRDATR Report post Posted October 8 29 minutes ago, bowhunter-tw said: I did, unfortunately I cant remember now if it errored on that one or velocity was inline with the others. All the loads that read were on par with one another If you were shooting paper was it on par with the other ones or did it shoot low. Share this post Link to post Share on other sites
bowhunter-tw Report post Posted October 8 It looks like it did pit the bolt face a little Share this post Link to post Share on other sites
