I think it was one bad batch… the first 5k I got were a bigger box, no issues… 2nd batch, 3k was smaller boxes… only a couple minor issues that I could not say were 100% ammo related. Last batch of 5k have had way more issues than I’d like. But somewhere in there at the beginning of the third batch… I went to a bar sto barrel in my legion, and Got the CZs one with bull and the other just stainless but both czc made barrels. I just wondering if the smallest amount difference is what caused this, or if it’s the ammo. I’m leaning toward it’s maybe tighter tolerances are the issue with the OAL. I know it’s not the diameter because the one we measured was under size… and I thought that was causing the keyholes… I’m going to need to take them to my gunsmith and see what he thinks we should do.