Never happened with the amaxes to me. still can happen as still have a few K's left of those 600 values packs.
But according to everyone reloading the tmk was done right from the get go and hornady fixed that with the ELD.
Is it possible? you bet, but probably so rare that will never have that kind of impact. These brands sponsor world champions
and they shoot the same bullets as everyone else and they would not want that kind of publicity on them.
I think there is also a risk a otm can be off by weight, meplat or some other defect but how often do you see those?
I trust Sierra bullets 100%. Hornady match are also in the same league.
I like bergers too but lately I do not see the point in spending more.
It happens more often than you care to believe. There is an ongoing problem with Hornady 75 BTHP which they had a special on. Some never make it to the target. Berger had a similar problem some years ago. Sierra is most trustworthy, I agree. That's why I only shoot Sierras. They have best quality control, but I can show you Sierra bullet without a core. Found it in a box of 500, after another one I loaded didn't make it to the target. I Also have a circumsized Sierra bullet as well as other calibers that were in .224 boxes. You shoot enough of them, you will see everything.