Had a fella, does car-racing in nice weather, won't be back on here 'til winter, talking about those heavy bullets. Used 405gr hard cast in Redhawks. The idea was, for SD bear load at short range (not hunting), to develop a 1000 fps load, no faster, such that you could get in a second shot. For protection when hiking in Alaska or...
The guy is FlatTop. He and friends got up a load with 2400 that suited them. Penetrated 13 gallon water bottles lined up in a row and never found the bullet. At 1000fps, I don't think I'll stress the gun at all. FlatTop's load put 5 in one inch @ 25 yds.
The bullets come from BearTooth for you guys that like to experiment. I have some loaded with several slow-burning powders, but some recent surgery has kept me off the range. Will let you guys know, although I won't reco these loads for anything less than a RedHawk.
Sonny