21.0gr Ramshot Enforcer *or* H110 under a 210gr XTP.
The XTP doesn't expand as much as other hollow points, but it drives deep. I've killed quite a few things with them...but NOT in .41 Magnum. The 155gr is actually what I have in the magazine of the M&P 40 (eww) that is on my hip at the moment. Just used it to euthanize another cow yesterday. It and the Gold Dot are all I've attempted to hunt with over the past decade.
I have a S&W 57, Freedom Arms 97, and three screw Blackhawk in .41. Love the cartridge, but have a 10mm Wilson Combat that has been the only thing I've taken out pistol hunting in the past 7 seasons.