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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Bushnell 4200 vertical adjustment issue
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<blockquote data-quote="sxwatson" data-source="post: 256169" data-attributes="member: 10779"><p>Just picked up a 4200 Elite Tactical 6-24x50. Really nice scope.</p><p></p><p>I checked the scope for "crabbing" at the range. (drift to the left or right when applying vertical adjustment to the scope.)</p><p></p><p>1. Zero'd scope at 100 yards. </p><p>2. Made up a target on cardboard that is basically like following Darrel Holland's article on Reticle Perpendicularity. (Catshooter actually wrote a much better article on scope mounting in general that I read on 6mmbr.com) Made sure when placing the target the vertical line was in fact vertical using a level.</p><p>3. Put two shots in a 1/2" circle I drew at bottom of cardboard target. </p><p>4. Came up 30 MOA (unfortunately all the vertical adjustment I can get out of it, need to offset a little more). </p><p>5. Fired again at same 1/2" target. Hit less than 1/4" right of vertical line. Repeated shot to verify results.</p><p>6. Tweaked scope slightly to the left and repeated until the shots were on the vertical line.</p><p></p><p>All was good and I was a happy camper. Then I decided to measure the distance from the 2 shots at the bottom of the target in the 1/2" circle up to the shots at the top. I came up 30 MOA which should be 31.41" at 100 yards. All 4 of the shots that were made at the top of the target were at 32.75". A difference of 1.34" or .446 extra MOA for every 10 MOA of rotation.</p><p></p><p>Does this all sound right? AM I doing something wrong?</p><p></p><p>If I did do everything right - Has anyone else experienced this with there scopes? Do you think I will be able to send this back to Bushnell to have it fixed or is this an acceptable amount of "slop" in the adjustment?</p><p></p><p>Scott</p></blockquote><p></p>
[QUOTE="sxwatson, post: 256169, member: 10779"] Just picked up a 4200 Elite Tactical 6-24x50. Really nice scope. I checked the scope for "crabbing" at the range. (drift to the left or right when applying vertical adjustment to the scope.) 1. Zero'd scope at 100 yards. 2. Made up a target on cardboard that is basically like following Darrel Holland's article on Reticle Perpendicularity. (Catshooter actually wrote a much better article on scope mounting in general that I read on 6mmbr.com) Made sure when placing the target the vertical line was in fact vertical using a level. 3. Put two shots in a 1/2" circle I drew at bottom of cardboard target. 4. Came up 30 MOA (unfortunately all the vertical adjustment I can get out of it, need to offset a little more). 5. Fired again at same 1/2" target. Hit less than 1/4" right of vertical line. Repeated shot to verify results. 6. Tweaked scope slightly to the left and repeated until the shots were on the vertical line. All was good and I was a happy camper. Then I decided to measure the distance from the 2 shots at the bottom of the target in the 1/2" circle up to the shots at the top. I came up 30 MOA which should be 31.41" at 100 yards. All 4 of the shots that were made at the top of the target were at 32.75". A difference of 1.34" or .446 extra MOA for every 10 MOA of rotation. Does this all sound right? AM I doing something wrong? If I did do everything right - Has anyone else experienced this with there scopes? Do you think I will be able to send this back to Bushnell to have it fixed or is this an acceptable amount of "slop" in the adjustment? Scott [/QUOTE]
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Bushnell 4200 vertical adjustment issue
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