The Olympic ammo that I purchased has a neck size that is .005 larger than it should be.
The rounds often jam in my Bushmaster AR while chambering.
I have been using the cheap Wolf ammo now and have not experienced a single jam but I still have about 700 rounds of the Olympic ammo that I cant use. I was hoping that I might be able to size (swage) the necks, perhaps with something like a Lee crimp die ?
I checked the Olympic ammo in a Frankford Arsenal gauge block and not a single round fit.
After checking the dimensions of the ammo, I found that the neck size was typically .005 oversize.