Too bad you did not use the 44 special on the Bison, would have been 'classic' and done the job. I know a 240 .429 does a lot at 1050, and read where one person's idea re: handgun penetration/power, once the bullet has penetrated, what more can you do? SO, given that a bullet from 900-1000 will clear a deer, does having 200 or even more fps in a handgun assuming cast bullets used do any more damage or killing? I tend to think it is likely the wound channel is very similar in diameter, so if so, then penetrating them at 1000 mv or 1200, or even 1400 seems irrelevant.
Seems suffice to say (using .40+ and 200+ grain), 1000 fps is fine for closer shots, and leave nothing to be desired in killing.
Thoughts from anyone?