I was double checking my zero today at 100 yards. Load is 37gr of H110, 275TSX, rem 7 1/2 primers with .474 crimp, out of an 18" barrel. I was shooting into a an old box made of 1/2" plywood then into a pile of topsoil. So bullets traveled thru 1/2" of plywood then 24", into another 1/2 plywood then into the dirt.
While the load shoots a ragged hole I expected a little expansion