Weird question. I bought a used Savage Custom shop lefty M12 .204 ruger. It is a DBM 2 screw stock with a bottom (trigger guard) bolt release. It has an aluminum block in it. I don't know if I have a newer non wedge 2 screw Accustock or an HS Precision. It looks to me like an HS Precision. I am asking bc I went to the range today and had a bit of vertical stringing with the stock torqued to 30inch lbs. HS says torque to 65 inch lbs and Accustocks seem to be spec at 45inch lbs.

How can I tell what I have?