I attempted them but there CCI 250LRM primers worked better in my rifle plus the mags are far better up below do to looking at -forty temps When in essense all you might have is surely an improperly supported primer with stress in opposition to it on a single side https://z-ndh-tchen-small-pistol02345.blogpostie.com/53329450/the-5-second-trick-for-cci-br2