SP10 builder kit with +3 gas

With a 6mm Creedmoor, it will shoot smoother than a 6.5 Creedmoor, which is already pretty smooth.

But there is more that affects recoil than gas system length. Do you plan to use a muzzle brake or a suppressor, or just a bare muzzle? Standard weight bolt carrier or lightweight bolt carrier? Adjustable gas block or fixed? What buffer system?
 
With a 6mm Creedmoor, it will shoot smoother than a 6.5 Creedmoor, which is already pretty smooth.

But there is more that affects recoil than gas system length. Do you plan to use a muzzle brake or a suppressor, or just a bare muzzle? Standard weight bolt carrier or lightweight bolt carrier? Adjustable gas block or fixed? What buffer system?
Suppressor, RCA titanium carrier, JP SCS, adjustable gas block. Gun is basically going to be a range toy a coddled hunting rifle.
 
Suppressor, RCA titanium carrier, JP SCS, adjustable gas block. Gun is basically going to be a range toy a coddled hunting rifle.

That setup us pretty similar to mine. You're going to have so little recoil with that setup.

To give you an idea of my setup:
22" 6.5 Creedmoor barrel with +2" gas system
Adjustable gas block
Area419 muzzle brake
JP low mass bolt carrier
JP SCS