If you only want to use a scope in working up a load for a rifle, consider using a weaver base, and then clamp it to your rifle using radiator hose clamps. Pad the stock to protect the finish and the wood, and tighten the clamps down. 'That will hold the mount in place and allow you to use the scope for this temporary work. When you have the most accurate load for the work you want to do, remove the scope, and zero the load with your open sights, or aperture sight.