help

[StoneHendge]

28 grains of Varget is a pretty stout load depending on how much energy your lot of Varget has (I've found it to be very inconsistent lot to lot, along with everthing else over the last few years). I'd give a box of factory ammo a try. Sounds like you could be overgassed and the bolt is coming back across the mag before the next round (or follower) has a chance to come all of the way up