I've read a little on this subject. Now I want to know how you guys make adjustments when ballistic data does not fit your field data.
I'm shooting 208 Amax's at 2860 fps, 4000' ASL.
JBM gives 1.0, 3.2, 8.3 and 10.9 mil for 300, 600, 1100 and 1300 respectively.
Field data shows 1.1, 3.1, 7.8 and 9.6.
No matter how I manipulate the variables in JBM, I have not been able to duplicate my field data.
So, do you get it close and bias toward long range accuracy and then confirm with field data?
I'd like to get out to 1 mile soon, and I'm sure the data will get me close, but misses are getting really hard to spot and I don't want to spend all day dancing around the steel.
What do you guys do? Comments, questions, advice, or helpful hints from those wiser and more experienced than I would be greatly appreciated.
Thanks,
John
I'm shooting 208 Amax's at 2860 fps, 4000' ASL.
JBM gives 1.0, 3.2, 8.3 and 10.9 mil for 300, 600, 1100 and 1300 respectively.
Field data shows 1.1, 3.1, 7.8 and 9.6.
No matter how I manipulate the variables in JBM, I have not been able to duplicate my field data.
So, do you get it close and bias toward long range accuracy and then confirm with field data?
I'd like to get out to 1 mile soon, and I'm sure the data will get me close, but misses are getting really hard to spot and I don't want to spend all day dancing around the steel.
What do you guys do? Comments, questions, advice, or helpful hints from those wiser and more experienced than I would be greatly appreciated.
Thanks,
John