I'm buying some to try. I've got a very well developed 243AI which i'll make use of them on also. I'll try out them in my 30 Nosler but I am igniting 80 grains of H1000. I am making use of Gold match bench mag primers in it now but https://z-ndh-tchen-small-pistol13456.bloggazza.com/30765011/examine-this-report-on-cci-zündhütchen