Like Scott, I have a 10x SS that gets used for that purpose. Bought it on a big sale and can't seem to find a rig I like it better on than a 6x or something else.
Had a Sightron 6X 44 that I used as a test scope for years. Is a damn good scope that's stood up to a lot of abuse. If it had a measuring reticle, I'd still be toting it around.
I also have a very accurate 300 win mag that most new or troubled scopes go on to check function.
Side note: Some call a test scope a Mule; might not be PC these days due to the double entendre that some would consider pejorative.
