Bearmann556
Marksman
I do not know if it’s bedded and no manual. But I will ask. It is on a Macmillan stock. The barrel would be threaded. I would choose 175gr.Is it bedded? What bedding was used? Have you got the USMC Manual? Does it sit in one of Mac's Stocks or a knockoff? Do you intend to go with a Target Crown or threading for a suppressor? Have you selected between 168 or 175 Match Chamber? Ranges over 750 yards don't bother with the 168 Match Chamber, go with the 175 M118 instead. JMHO. Lots of questions, Once you determine those answers I'll ask a couple more. Doing it once right takes a lot of leg work. But I'm sure we can put you on the proper path if we all work together. JMHO.