JSB 25.4gr .25 cal BC….
This is way basic but with 910fpe muzzle velocity(Foot and a half), 800’ish at 30 yards and 750’ish at 50 yards elevation of 330ft Chairgun gave me .0387. And from field testing chairgun is about on POI wise and such.
[EDIT]
Those speeds were produced with the ProChrono Digital and Chairgun did the math.
All Replies
Viewing 8 replies - 1 through 8 (of 8 total)
Viewing 8 replies - 1 through 8 (of 8 total)
- You must be logged in to reply to this topic.

Cheers,
Marc
LOL
Ive been using .040 in iSnipe for the Benjis, and its been right on the “dots”. I know my muzzle velocity, but haven’t verified it at the target.