I am shopping for some to test. I have bought a well constructed 243AI that I'll use them on as well. I am going to check out them in my thirty Nosler but I'm igniting 80 grains of H1000. I am employing Gold match bench mag primers in it now https://ccibr2zndhtchen34678.blogocial.com/the-2-minute-rule-for-zündhütchen-large-rifle-67464605