I shot my new rifle with 62 grain TSX bullets over 23.5 and 24 grains of TAC. The gun with a NSX 1-4 in Larue LT104 mount produced a 1.3 inch 5 shot group with the TSX and 24 grains of TAC. I have it zeroed to hit 1 inch high at 100 now with this load. A box of Factory American Eagle 63 grain softpoints shot 5 into 1 inch, and a box of 64 grain WW powerpoints shot 4 into 3.5 inches really very bad. So I will shoot a doe with the TSX this year. What is an H buffer and should I get one? The 24 grains of TAC seems to be a bit hotter than the other ammunition I was shooting.