What rifle/cartridge etc are you using?
I use my Ruger single six convertible with a 9 1/2 in barrel. it is very accurate.. I get to within 50 yds or less and only do head shots.. seldom miss its BANG and lights out. I practice a lot.. I can throw a can up in the air , draw shoot and hit it about 50% of the time..it takes a lot of practice.
Do you use the mag cylinder or the 22LR?
I use the 22LR cylinder, not scoped , I have had it a very long time. If I kill another big one I will weigh it.. the two big ones filled a wall mart bag each. nobody else shoots them where I do , so they grow to super size.. I think that is why they are so big...
