Re: Length of pull
Easiest way to measure LOP (distance fron the trigger to the back of recoil pad) is to bend your arm at 90 degrees and measure from the inside crease of the elbow to the tip of your trigger finger. Will usually get you very close to what you need. Some recomend sutracting a .5" to 1" if you will be using the rifle with a lot of cold weather gear on.
Ignorance can be treated with education, sadly there is no cure for stupidity.