Is it possible to measure yourself for the perfect stock fit? I currently own a LTR, which I bought sight unseen on the internet, and it feels like the stock is too small for me. I feel cramped in the prone position...I have had to shim my cheek pad with pipe insulation...and only two of my fingers fit on the grip. This was my first bolt gun and really didn't know much about what I was doing. I don't have access to different stocks to try in my area. I was hoping there was a way to improve my situation by use of a tape and the internet. Thanks.