I’ve used Prime brass for as long as Prime has been around, but I’m only on my 4th firing. That has more to do with the fact that I have about 500 pieces of Prime, 500 of Alpha, and like 600 or so of Hornady, so I use it for only one rifle. I think it’s good brass. I wouldn’t put it on the Lapua or Alpha level of consistency, but it’s a bit better than Hornady. Case capacity is lower than Hornady by a few tenths, so start low and work your way up to find your max. I accidentally had a piece get into my Hornady stash and loaded it to my Hornady charge weight. The difference in sound and recoil was noticeable and I had distinct pressure signs.