I'd go with regular lead and be darn careful on shot placement.
Partitions are great with speed, but without it I'm not sure they wouldn't slow the back end of the bullet up and not penetrate. Given the slow speeds here TSX are just a waste of money too.
If your lower than 2600 fps you don't need fancy bullets Go heavy and keep shots conservative and they'll drop. Take a risky shot with a 30-30 or any round for that matter and your pushing your luck at the expense of the critter.
Spot
