Give the T/C Maxiball and Maxihunter as well as the Lee R.E.A.L. a try. The Lee loads a little harder than the T/C's but it can be an extremely accurate bullet depending on the rifle. Use a bore button (felt wad) between the powder and bullet. The button acts as a gas check and gives you more consistent velocity and usually better accuracy. Just rub a little T/C bore butter or Ox-Yoke Wonderlube onto the conicals by hand if they aren't already pre-lubed. You should find one that shoots good groups through that 1:48 twist barrel. Let us know what you settle on....BPS