USO 3.8-22x58 Ballistics Knob.
Posted: Mon Apr 26, 2010 3:56 am
I will do the calculations for my MOA/MOA Scale scope and have the estimated range settings engraved on this scope knob, or a new one the same as this. One Rev of the elevation knob on the erek is 22.5 MOA. More to follow after I do the calculations and contact USO engineer.
Initial Conditions:
7 WSM
MV 2800
Berger 180 VLD
75*F 29.75" HG 49.7RH
BC .684
Given these intial conditions, 22 MOA will get me to 900 yards on the knob. 1200 yards on the TMOA scale is 35.6 MOA.