Have been shooting several different heavy bullets from different moulds and different casters, and working up loads for my New Model Blackhawk. Some of the best I've found, and ones my gun likes best are the 45-270-SAA, a 315 grain 'Keith' from a LBT mould, and a 300 grain GC from a RCBS mould. All three are good bullets, but for one reason or another I haven't been completely satisfied with any of them. I searched extensively for the design I had in mind, which would combine the best features of these three bullets but couldn't find it. Some came close, but none was exactly what I was looking for. Perhaps that mould is already out there and I've only succeeded in reinventing the wheel, but if so I was unable to find it...
So, let me introduce my new baby; the 45-340-NMB:
Here it is with the other three for comparison:
Cast with Lyman #2 it drops at about 345 grains, and preliminary loading over 15 to 17 grains VV N110 indicate it shoots like a laser. I'm quite pleased, and reckon tinkering with this one will keep me busy for awhile.