Sellier & Bellot 6.5 Creedmoor 140Grain SP 0.22" (5.5mm) * One single air tank

* One single air tank for optimal volume flow

Giant X2 and GTK290

Additional adjustments to the cheek piece and butt pad

- Plenum Volume: 35ccm

we do not expect these to work in original smooth twist FX barrels but should be OK in the new X barrel by FX

Sellier & Bellot 6.5 Creedmoor 140Grain SP 0.22" (5.5mm) * One single air tankSellier & Bellot Sellier & Bellot produces dependable, quality ammunition using only high quality components and is one of the largest ammunition producers in the world. Its ammo is used by hunters, competitive shooters, law enforcement agencies and militaries around the world. Sellier & Bellot ammunition is factory loaded, non corrosive, boxer primed, and in reloadable brass cases. S&B brass casings rank among the best in terms of durability and