USO 3.8-22x58 Ballistics Knob.

Discussion about rifle scopes, spotting scopes and binoculars.
Critter
Senior Member
Posts: 195
Joined: Mon Nov 14, 2005 10:05 pm
.204 Ruger Guns: Ruger #1B .204, Ruger 77/44,
Location: Washington State

USO 3.8-22x58 Ballistics Knob.

Post by Critter »

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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.
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