by RayK » Wed Feb 25, 2015 9:22 am
Just install it and see what shot string you got.
I frequently re-tune, but as long as you set hammer throw similar to what it is with your stock hammer, it will be in the same ballpark. I think the NBH weighs a little more than the stock hammer and that will make a difference.
Ray
25 W-rod | 08 shots @ 70 FPE -2% | 3100 fill
25 M-rod | 40 shots @ 35 FPE -4% | 3100 fill
22 M-rod | 51 shots @ 25 FPE -4% | 3100 fill
17 M-rod | 50 shots @ 19 FPE -4% | 2500 fill
25 P_rod | 16 shots @ 29 FPE -3% | 2100 fill