I TOTALLY understand the meat hunting thing. I've had cicumstances were In HAD to get meat with a gun to eat,and,in that case, a .22mag in the ear hole and they drop like a rock,everytime!
I also get were your comming from and wanting to use a traditional gun to do your harvesting. Cap OR flint,it's not a matter of IF it will miss fire,but WHEN. Had it happen with both,but never with my Henry .22 mag!