The yellow jacket is the round my Gevarm A3 likes above all others. I always found the round nose bullets get a slight shave when feeding from the magazine but the truncated cone feeds super smooth and they shoot extremely accurately out of it. And as for misfires / duds, what are those? I have never had a misfire with the old Gevarm! I used to pick up the duds from my shooting buddies Cooey and Winchester and shoot them out of my rifle! Really bugged them!