Range Report Instrumental to Muzzle Velocity

95LTZ

Sergeant
Full Member
Minuteman
Sep 3, 2003
622
9
70
Ft. Pierce, Fl
Having a little brain fade. Does anyone have the formula handy to convert Instrumental velocity to muzzle velocity? Oehler's program has it but with a fairly new computer & I can't find the disc. Seems to me that it was something like 25 fps for the chrono being 15ft. from the actual muzzle.
Semper Fi
 

95LTZ

Sergeant
Full Member
Minuteman
Sep 3, 2003
622
9
70
Ft. Pierce, Fl
Re: Instrumental to Muzzle Velocity

I was able to get ahold of the folks at Oehler Research today on the phone. They said that I should use 7 fps as an average for the middle screen being 15 ft. from the muzzle. They also said that there were lots of variables but it would be safe to use 7 fps at the 15 ft. distance.
Semper Fi