I don't believe the primers have pin holes. The primers have split due to excessive space in the case pocket. This can be caused by excessively large case pockets, or undersize primers...... Or both.
Winchester brass problems. ~ A FRIENDLY ADVISE POSTING ~
- Thread starter Pureblood
- Start date
Help Support Long Range Hunting Forum
lyle2231
Well-Known Member
In the early days when the AR was being used in the nra matches the same problem surfaced with Federal brass. We ( my shooting buddies) determined that the ammo was loaded hot, 5.56 pressures or primer diameter was too small. What we missed was the aspect of the brass being softer than it needed to be. Changing to a nickel plate primer solved some of the problems but it only gave -2- more reloads. The gas etching on the bolt looks bad but what we experienced was no effect on accuracy with new or once fired brass. Head space was not an issue.
I experienced no effect on accuracy either, as you point out it just looks bad . I don't think it's dangerous, and it does not seem like you think so either.
Kendoist4162
Well-Known Member
For the love of all grammar gods…. Advise is a verb. Advice is the noun. 
baldhunter
Well-Known Member
Send Winchester an email with the lot numbers in question
baldhunter
Well-Known Member
???????????????????????????????????????? Apparently there was a problem because Winchester had me send them back to them and sent me a check for them.Maybe you don't know everything.
Can you supply evidence of that ?
hunter0528
Well-Known Member
How many rounds did you shoot to cause this issue???
Probably about 200. I changed the bolt head when I dumped the cases and have had no issue since.
I am now using a hand primer to seat all my primers. I believe this will alert me to any such problem in the future. Nip it in the bud so to speak.
baldhunter
Well-Known Member
Bad lot of winchester primers
I had the same issue, contacted Winchester, they took the bad primers and replaced my bolt… The cause of the pinhole is incorrectly annealed brass sheet, when the cups are punched, minute fracturing occurs which pinholes upon firing. Here’s some pics.
Evidence that Winchester corresponded with you and sent you a check.Bad lot of winchester primers
I had the same issue, contacted Winchester, they took the bad primers and replaced my bolt… The cause of the pinhole is incorrectly annealed brass sheet, when the cups are punched, minute fracturing occurs which pinholes upon firing. Here’s some pics.www.longrangehunting.com
"Winchester had me send them back to them and sent me a check for them.Maybe you don't know everything."
lol, you expect people to believe your comments and suggestions but you then want "evidence" of a members. Others here have posted also that Winchester took care of them and replaced damaged or paid for damaged items. GTF outta here. Typical keyboard ninja just wanting to start arguments.
What is wrong with asking someone to provide evidence of what they claim ? I want to see what Winchester had to say about it, that's all.
Why turn it into a big deal ?
There are some real delicate wall flowers about.
