Lol. Yea its a lot of barrel.
So I shot a little bit in the dark.
Reg is around 120 bar. I had turned it down from its factory setting a while back.
18.13 jsb maxed out at 1026fps.
NSA 17.5 .2165maxed out at 996fps
NSA 20.2 .217 maxed out at 916fps
JsB 25.4 knockouts maxed out at 830fps.
Accuracy with jsb 18gr at 30 yards in the dark is same as the LW barrel. Pellet on pellet. Had to turn the hammer spring down quite a bit to get it under 900fps.
Didn't really have any luck grouping any of the lighter weight slugs. Then again is was dark and couldn't see what I was doing. I do have a heavier hammer spring on the way. And I will most likely add another plenum and up the reg to 140-150 bar. Got a feeling this barrel was meant to shoot heavier weight slugs.
I might try getting some .22 jsb redesigns and see if I could make this gun a 45fpe .22
The slugs did go in pretty snug. Felt equal to the LW barrel.