Howdy Mr Doody
I remember a few years ago when the reports of bad lots of Winchester primers surfaced. Lot numbers were published at the time, but of course I did not save it. Maybe someone else did. This must have been at least 3 years ago, but I suppose you might have gotten one of the old bad lot numbers.
Just curious, did this happen with a specific gun, or several guns?
I've been using Winchester primers since about 2001 or so, all Large Pistol primers. The only failure to fire I've had with them can be attributed to light hammer strikes. I have a Colt with a particularly light hammer spring, and because of that I only use Federals for my pistols. My '73 just got slicked up to within an inch of it's life. I never had problems with light hits with it before, but now that the hammer spring has been considerably lightened, I am still getting a few light hammer hits with it. But that is totally because of the light hammer spring, and not the primers. I'm slowly 'tweaking' the adjustment screw for the spring, until I get no more misfires. Thought I was there already, but I had one more light hit the other day. But so far at least, I've never had a light hit on a Winchester Large Pistol primer fail to go off with a second hit.