Rifle Scopes Scope Body Stress and Internal Damage

[Bluesop7]

So I have a super sniper 10x that I've had for years and has worked 100% up until about a week ago. I had recently completed building an AR-15 from parts and already had put a pair of Troy BUIS on. So...I test fit the SS and the rear BUIS was right in the middle of the SS underneath the knobs but looked to just barely fit. Well I get to the range to work up a load and the loads shoot kinda crappy and was kinda difficult to get zeroed. I didn't think anything about the scope so I loaded up some more rounds to try and get a better load worked up. This time I can barely get on paper(didn't touch the knobs in between trips) and is when I noticed that the flat part of the middle of the scope where all the knobs meet is most definitely touching the BUIS and most likely putting stress on the tube. So I take off the BUIS and everything should be hunky dory with the SS now...wrong.

I took it out again and I remember dialing in 1 MOA down and 4 MOA right, shot again and POI moved 3 MOA right and about 7 MOA down. This happened again and again in one form or another. I was all over the paper even without touching the knobs. Since the rear BUIS was no longer putting the scope body in a bind I thought all would be well but I'm thinking not. I'm just wondering if anyone else has experienced something like this? Does putting stress in the scope body cause permanent damage to a scopes internal parts?

 

[Killswitch Engage]

Re: Scope Body Stress and Internal Damage

sure sounds like it but i have an ss thats been through about 5 rifles and finally took a drop on the ocular housing from about 5ft and the entire weight of the rig smashed the ocular housing down. i put it in a press and straightened it. still works and tracks fine... its a back up and now on my .22

 

[Beef82]

Re: Scope Body Stress and Internal Damage

Its a new build, try it with a different sighting system at the same distance. If it still does it scope mounting isn't the only thing you didn't pay attention to. If it doesn't your scope has failed, possibly because it was in a bind and by adjusting it something came undone in the erector, or for an unrelated reason something internal gave up, mechanical devices do that sometimes, the end result is the same.

 

[Bluesop7]

Re: Scope Body Stress and Internal Damage

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Beef</div><div class="ubbcode-body">Its a new build, try it with a different sighting system at the same distance. If it still does it scope mounting isn't the only thing you didn't pay attention to. If it doesn't your scope has failed, possibly because it was in a bind and by adjusting it something came undone in the erector, or for an unrelated reason something internal gave up, mechanical devices do that sometimes, the end result is the same. </div></div>

Good idea, I'll throw it on my GAP and see how it does. I really hope its the scope and not my rifle, I think I would cry if my new build actually shot that bad. Thanks for the tip.

I did do a good bit of adjusting while it was in a bind so perhaps something snapped or came loose inside the scope.