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Posted: 12/3/2009 8:32:52 AM EDT
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I just built a 6.8SPC upper primarily for hunting.
On top of it, I mounted a Bushnell Elite 4200 1.25-4x with illuminated reticle. Many people here use the same model scope and love it, saying that it's one of the best deals for the money. Well, yesterday I was finally able to zero my rifle. I set the optic on 4x so I could see the impacts at 50 yds without dragging out a spotting scope. After zeroing at 4x, I adjusted the scope back to 1.25 and fired a group of 3. It was 2" lower than the group shot on 4x. I tried again at 25 yds with the same result, 2" lower than the point of impact on 4x. Out of curiosity, I clamped the rifle to the bench good and tight, put the crosshairs on the center of the target, and adjusted from 4x to 1.25. I could clearly see the crosshairs moving, changing the point of aim approximately 2". As I adjusted back and forth, the crosshairs clearly moved from the original point of aim, to the new point of aim 2" away. What the hell? I've heard of parallax problems before, in very low quality scopes, but I've owned Tasco products that weren't this bad. A slight change in POI is understandable but 2"? Is this a common issue with this scope? Should I send it back to Bushnell? |
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Quoted:
Crap, I have one on a .223 I want to move to a new 6.8. I'll test the same thing but it won't be for a while yet. I hope I have better luck. I wish you the best with yours. Let us know how this gets resolved. If you have a way to sandbag the rifle or clamp it down in your home, do so with the crosshairs centered on a small object some distance away. Then, adjust from lowest to highest power and see if you notice a change in the point of aim. It's VERY obvious that the crosshairs are moving. |
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Quoted: Quoted: Crap, I have one on a .223 I want to move to a new 6.8. I'll test the same thing but it won't be for a while yet. I hope I have better luck. I wish you the best with yours. Let us know how this gets resolved. If you have a way to sandbag the rifle or clamp it down in your home, do so with the crosshairs centered on a small object some distance away. Then, adjust from lowest to highest power and see if you notice a change in the point of aim. It's VERY obvious that the crosshairs are moving. Send it back.  |
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