Originally Posted by Ackleyfan
Ive seen loose scope mounts cause double groups......something to look at!


I have noticed that half the time with my rifle and half the time with other people at the range I help..... the problem is lose scope base screws.

Never lose ring to base.
Never lose ring cap.

This was a mystery to me for years, until figured out it is caused by oil creeping into the crack between the base and the receiver and then recoil can shake it loose. Never happens in 22s or 223s. Not enough recoil.

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