After shooting at the range yesterday and achieving sub MOA shooting just over half inch groups with my Ruger 77/44 I'm going to load up a few and try them through my chrony to check velocity so I can figure out energy and drops at long distance. I'm using a 263gr Lyman devastator backed by 21.1 GR of lil gun out of a 16.5" barrel. I'm going to guess my muzzle velocity is going to be around 1700 fps or a hair faster.
I got thinking about a deer I shot with an old knight bk92 muzzle loader close to 20 years ago using 2, 50 grains of the first gen pellets before 777 came out. I back boned a whitetail at 297 yards with open sights using a sabot stuffed with a 44 cal 265gr hornady jacketed soft point. It of course dropped on the spot and took a chunk out out of its back the size of a small coffee can.
I would assume the the velocity was less with this load than my devastator load and I can tell you I'm going to be way more accurate with my Nikon BDC to figure out drops.
My tc omega with 150 grains of triple 7 and a 300 shock wave will shoot 3" groups at 300 yards with optics. I know it's a little more velocity than my 44 rifle. But what I'm getting at is if I can achieve acceptable accuracy at 300 plus yards with my 77/44 how far can I push it to the point it will run out of ethical kinetic energy for let's say whitetail size game.
I don't plan on doing it since the farthest shot I have is a little over a hundred yards on my property but I'm just curious.