Small caliber, short range, got to go with a 32 as a first pick. Prefer flint for fun factor. Currently have a single 32, a Pedersoli ‘Frontier’ model I believe. Have two locks for it, a caplock and a flintlock. Have not shot the caplock, but the flint setup has proven to be very accurate out to to 30 yards, well under an inch with a 12 to 15 grain load of fff or ffff, although I just tried the ffff to see how it shot. Neither squirrel, golf or ping pong balls are safe inside of 30 yards. Typical Pedersoli quality issues (not a complaint, just an observation after owning half a dozen) poor inletting of lock mortise with wood interfering with lock function and a rough bore chamfer, but easily corrected. Had a longer barrel TC 32 (Seneca?) years ago, but long gone. Have a 45 caliber Cherokee and find it an easy shooting and accurate gun. As long as bore is in good shape, any of the smaller caliber guns are a good choice.