Nope. I'm saying none of that. I'm saying that it's probably more likely that the rounds involved in that particular instance were potentially undersized, which we've seen with steel cased ammo. It's rare, but it's not something that can entirely be eliminated because it's ammunition-related. I know off the top of my head that we've seen similar occurrences in the USGI. It's not really mag-related when it is undersized ammo. All your other ammo may be in spec. It may be ONE single round that's the problem, or it may be a handful. You may have never had a round that undersized before, and you may never see one again. All I'm saying that we've seen it in different types of magazines, and every time, it's an undersized ammunition issue.
It's like filling your car at a pump that's supposed to be 87 octane, but every once in a while, they slip up and put MO gas in the supply tank. Your car may not run very well, but it's not the car, and you wouldn't change the car to run better with MO gas.
Making the internal dimensions smaller to accommodate that rare occurrence with out of spec ammo would make the mag run less reliably with in-spec ammo by a small, but indeed measurable and significant (to us) amount.
That is the most likely issue here...Mag to mag variance is extremely small, and we do 100% gauging for internal and external dimensions. That said, I suppose anything is possible, and we'd be glad to take a look at it and swap out the mag for you if you believe the mag is bad.