If you are just shooting for fun, try a lighter bullet. I had to drop from 255 down to 180 in a Remington 45 Colt replica. In another gun, a Ruger that some dumba$$ had filed the sight down I had a buddy tig weld material on top of the sight and then I filed it down to get it on at 25 yards with rear in mid position. A little hotter load might help as it will cut the barrel time.