I have recently bought a 338LM in the Savage 110FCP, It has a 26" Tube + Brake, 1-9" Twist. I put a box of HSM rounds OAL 3.680" through it thet seemed to group fairly well @100yds, until my Scope rail came loose. I reset everything and ran some loads through it that i loaded using Berger 300 gr hybrids, HSM brass, Fed 215m Primer's and US 869 powder with charges from 93gr to 100 gr loads all OAL @3.760+/-, temp was 50* elev 10,000'. My grouping was all over the paper @ 100yd's, This is my first experience with handloading so I'm pretty new to it. Any advice on loads or anything else would be much appreciated, Thank's in advance.