I would not shoot any big game with a sub sonic bullet I had a 300 whisper built for me years ago it was a tack driver i shot a bobcat one time through the head at about 60 yards boom flop I go get my cat throw him in the back of my truck he had a hole in his head you could of slid a number 2 pencil through out the other side I got home got out of my old Toyota was going to unload the cat **** if he wasn't sitting up looking around so I hurried up went got 22 pistol and killed him sold the gun 2 weeks later wouldn't own another one unless was using it with a muffler in war. David