I expect that this topic may have been debated in the past, but I'm curious about any specific ways to MEASURE if a gun is on-face or not. I am not talking about a gun that you can easily move and feel the action when closed. I'm talking about a situation where one person says "it's tight" and another says "I feel movement".
How do you measure it? Is it always by "feel" or does one put a piece of .00x" shim stock in and pull on it???
I've found that holding/shaking barrels with action locked and fore end off will sometimes give you a feel of movement that's difficult to sense by just trying to move the receiver.
Thoughts?
