The Mach 2 is a GREAT small game round. I have killed several squirrels wiwth the round. I try to hit them in the head but I intentionally shot one through the chest at about 35 yds to see how much damage it would do. The squirrel had a dime sized exit wound on the far side of the chest and was able to be skinned with no problems. Even with a 22, if you hit them in the spine you usually pull them in half trying to skin them. The Mach 2 will double your usual 22LR range. 90-100 yd shots are possible.
I have a T/C auto, a 16" Contender carbine barrel, and I just bought one of the Browning Lever actions but I haven't had a chance to shoot it yet. It has been around 100degrees here every afternoon. No one else makes a lever action in the Mach 2 and Browning quit making theirs last year. I found one on Gunbroker.