I bought a statearms from larry about 3 years ago and he is a great guy and builds a great gun. Call and talk with him he will anwser any question you will have.
Dont shoot the 165 but I shoot 46.5gr verget with a 155 lapua bullet with great results.You can also find some good loads on www6mmbr.com go to the 308 info page.
Cinch I also shoot the 50 but in a state arms but if you want information on the 50bmg look a www.fcsa.org the have a vistior form but to get the real good information you'll have to join and there's a world of knowledge there.
If I was going to make a tapered scope base how would you figure out how much to taper it.I shoot a state arms 50 but the most moa base he makes is a 21moa and I want a 30 or 40 moa base.