I have been shooting a 500mm .22 Impact MK2 for 2+ years with great results. I have learned that running a higher reg pressure made it easier to tune for accuracy and in most cases ended up with fairly low ES & SD's. Yes, the tune window seems to be narrower but more stable.
My question is; going to the 700mm barrel would it be better to increase my hammer spring tension or up my regular pressure?
BTW
I currently run my reg at 145ish with my hammer spring somewhere in the middle. Never measured it.
I shoot JSB HADES around 935fps and and RD around 920fps and FX HYBRIDS around 990fps. I have also tuned for 24 grain slugs at 1070 ish by increasing the hammer spring with decent results.
My question is; going to the 700mm barrel would it be better to increase my hammer spring tension or up my regular pressure?
BTW
I currently run my reg at 145ish with my hammer spring somewhere in the middle. Never measured it.
I shoot JSB HADES around 935fps and and RD around 920fps and FX HYBRIDS around 990fps. I have also tuned for 24 grain slugs at 1070 ish by increasing the hammer spring with decent results.
