AzShooter1
Single-Sixer

Just got my Mark IV 22/45 Frankenruger back from Volquartsen. I've now put 1000 rounds through it of various ammo and it now works 100% with any brand I try.
VQ tightened the fit of the top end and added a new Magazine Catch that has made all 17 of my magazines work. It doesn't matter what I feed it, it eats them right up.
I've tried Wolf MT that didn't work before and now have fired over 200 rounds with no problem. Federal Auto Match, Blazer, Eley Practice and Pistol Match, Normal Tac 22 and Federal Premium UV all work well enough to shoot any of them as my match ammo although right now I'm thinking of using CCI Mini Mags for matches.