Citified
Well-Known Member
I shoot the same rifle with the slow twist previously noted. I experimented with bullets ranging in weight from 40 50, 52, 55 and up. I also use IMR4198. The load you listed is very much toward the low end of the spectrum. In my 700, it was determined
21.0 grains with a hornady 52 grain match bullet was the best grouping. Sub 1/2 MOA consistently.
Usually around 3/8. I tried many different weight bullets and although many would shoot 1 MOA, other bullet weights were marginally larger in group size
I would thoroughly clean the barrel, scope it and try the load with 52s This is nowhere near book maximum by the way. You might be pleasantly surprised.
21.0 grains with a hornady 52 grain match bullet was the best grouping. Sub 1/2 MOA consistently.
Usually around 3/8. I tried many different weight bullets and although many would shoot 1 MOA, other bullet weights were marginally larger in group size
I would thoroughly clean the barrel, scope it and try the load with 52s This is nowhere near book maximum by the way. You might be pleasantly surprised.