Range Report JBM
- Thread starter KeithR41
- Start date
Re: JBM
everything that i have ever gotten from them seems to be .1 to .2 mils off at the most if not dead nuts on
everything that i have ever gotten from them seems to be .1 to .2 mils off at the most if not dead nuts on
Re: JBM
It has me a a few mils short but I default to 2992 pressure, use local weather for data which is 50 miles away and close to water and guess at muzzle velocity which I think I have 30-50fps more than GMM 175 on the box. I just got a Ketrel so I hope to be able to get more precise data. Working on a chrono too.
It has me a a few mils short but I default to 2992 pressure, use local weather for data which is 50 miles away and close to water and guess at muzzle velocity which I think I have 30-50fps more than GMM 175 on the box. I just got a Ketrel so I hope to be able to get more precise data. Working on a chrono too.
Similar threads
