sorry so late on this post, been out of town. To be honest, the .308 shoots .5" with 150gr. sierra pro hunters and 43 grs of imr 4385. The 165 gr nosler BT's shoot at least that or better w/41 gr. Both are loaded .005 off the end of the chamber. The muzzle loader was shooting .75" groups until the other day when something changed and now I can't do anything better than 2-3 inches! two shots will just about touch and the third will be way out. Still doing everything the same, all is the same except maybe the humidity. Gonna try again tomorrow, we'll see.
Just shot a doe on the damage permit last week with the .308 and the 150 sierra's, she went only 20yds but not one drop of blood or cut hair, I traced every step she took with no signs at all. recovered the bullet, perfect mushroom!
The bow is right on, the shotgun is deadly, the rifle is pinpoint, but the muzzleloader is only minute of deer and that will never do. I guess I'll have to figure it all out, too bad, more time at the range.
This really is the greatest time of the year. good luck to you all