Primer blowby

[Tatume]

Winchester volunteered to pay for repairs on my bolt face. I deemed the effort not worth the reward, and declined. It felt good that they offered though.

[243winxb]

Zombie, Lot number and date of purchase? If available, Ty. I thought this was corrected by now? http://s338.photobucket.com/user/joe...r%20Gas%20Leak

[dtknowles]

I might never buy a Winchester Primer again. Too many other choices and no reason to use Winchester.

Tim

[Walter Laich]

this is one of the reasons I shoot at the lower end of the pressure chart--that and a shoulder with two surgeries on it

[Tatume]

Hi Walter,

Lower or higher pressure isn't the issue. When I had this problem it was with starting loads. The problem is a fault in the primer cup itself.

Someone complained he would boycott Winchester primers. It is not a problem unique to Winchester, as it has been reported with Federal primers also. I think every ammo manufacturer has had issues of one type or another. Over the years I've seen pistol, rifle, and rim fire ammo recalled.

Take care, Tom

[243winxb]

Remington 9 1/2 for me personally, around 1980. At least 3 rifles , using lite cast loads, to near max with jacketed. Happens to all brands. Winchester moved to a new plant and seemed to have the most problems then. Nothing wrong with my WLP's in 45 acp and 44 mag.

[chboats]

Had the same problem in a 44 mag with federal primers and new Star-line brass with light to moderate loads. Switched to Rem or CCI primers and no more problems.

Carl

[rogn]

Same problem with a lot of Remington 7 1/2s back in the late 80's. Several pitted on the radius during competition and I didnt see it until cleanup.

[GONRA]

GONRA has really olde (1958?) CCI Large Rifle Primers (brass, not plated)
that have cracked cups. Base looks fine.

Bet upon close examination,
(magnifying glass) some of those pin hole leaks seen these days
will be at the bottom of such wall cracks.