Re: Need a good bullet for subsonic hunting
The expansion is not the only mechanism working here, keeping the bullet in 1 piece and drilling a hole through the animal with huge penetration capability is important.
The hard cast 30's that I've shot deer with don't need to expand in order to drill through 18" of soft tissue, a couple shoulder blades and destroy all the organs in between.
The benefit to that over a conventional setup is that the slow velocity doesn't destroy the front 1/3 of the animal from hydrostatic shock.
With two broken shoulders, 2 punctured lungs and usually a sliced up heart they don't go very far.
The farthest "runner" that my dad and I have ever had from a subsonic shot was 125yd. She made it far enough to dive into the pines on the edge of my parents' property and left a good blood trail the whole way.
The ballistic tips don't work as well as the stuff I'm using, the sharp nose on them slices through and creates a wound channel that tends to be self-closing IME. You must hit the vitals HARD to get a blood trail. If you're going to use that bullet take short range head or base of the neck shots. Make sure that the animal is going down immediately.
A big, fat meplat with a short nose makes for a great hole drilling bullet; which is why I suggested above to turn the 210 Bergers backwards. No, they don't expand that way, but they do just drill right through and hit the lungs and vitals in a manner that asphyxiation happens quickly.
Sam, I'll try to remember to bring along the 44cal that I mentioned above next time you'll be at a match, or some loaded rounds you can take a look at. Once you see them I think it'll change your outlook on the lethality that I'm sure of. Subsonics at the muzzle from a 220gr RN have about 500FPE, which is more than a full bore, HOT loaded 357mag does and it's getting up there with the DoubleTap 10mm ammo.
From a heavy 44c bullet there's 1000FPE on tap and I have been unable to recover a bullet in 10years of hunting with them. They go through and don't have appeared to slow down much, phenomenal penetration and wound channel that's almost 1/2" across, the blood trail is always clear (unless I take a head shot, then it doesn't much matter anyway).