Double Groups Are A Worry

Loose scope bases or rings arec a classic cause of split groups on target. Torque them to approporiate tension and then re-shoot. — Loose scope bases or rings are a classic cause of split groups on target. Torque them to approporiate tension and then re-shoot. Image-Wheeler.


Q: My rifle which has been very accurate from new has started to shoot 
double groups. Can you suggest a reason for this, as I am at a loss to know 
what to do?Bob Barker

A classic double or split group. What mechanical factors can cause it?

A: A double group is usually a sign that something is loose. That could be the 
scope mounts, rings or a loose screw securing the barrelled action to the stock. 
It is a sure sign that there's a mechanical problem with the firearm. Check all these 
things then take it out to the range and see if the problem is gone.