My 10/22 hasn't had any issues with Butler creek mags or any Ruger mags. The only issues have been with those terrible Promags and currently with these Battledyne's. I will do more testing next time, but it was having a FTE (bolt catching casing while trying to chamber another round) every three rounds. It was also having feeding issues as the feed angle or seating of the magazine may be off. I have never experienced light primer strikes with any other magazine either.