I'm looking at acquiring a smaller cal. flinter for bunnies, squirrels, plinking, targets,etc. I have, and use, .50s and .54s for big game and I didn't have much luck keeping a .32 shooting well after 3-4 shots. (I don't like cleaning guns that often). So. . . trying to decide between good, readily available, affordable, .36 or .40. Any good information about the pro/cons of each?