Speer factory Gold Dot 270 gr.
The velocity is 1250 I believe. I found that this load will shoot to just a shade over two inches at 100 yds benched. I have done this all three times that I shot at that distance.
The revolver is an 8 1/2 inch "Realtree" Anaconda wearing a small Tasco 2000 red dot. [I also have one on my G-36].
Interestingly enough, the groups at fifty and seventy five are not much smaller....some folks say that bullets sometimes "go to sleep" on the way to the target and will perform like that.
I took one smaller deer with it at sixty five yards, about two inches low and two inches behind the elbow of the front leg. The deer went down and never regained its feet. The bullet was recovered from the ground behind and showed very little expansion.
That load is also the best I can find for Clements Custom .44 Ruger Blackhawk also, but only 1 1/2 in at 25 yds with open sights.