I have a Mauser 98' with a new pristine condition 2 groove , Remington , 1944, 03 - A3 barrel chambered in 30 - 06 Springfield.
Today I shot the rifle at 75 yards , off the bench, with the NOE 311284 bullet and aluminum gas checks made with Pat Marlin's tool. I was using Ameri-Max .014 thickness aluminum.
I stuck my thumbnail over the aiming dot for size comparison purposes.