Curious as to what kind of groups you get at 100 yds? If you do have a heavy trigger and are anticpating the recoil of the mag,the heavy trigger just makes it worse.
I did a triger job for a fellow a couple of weeks ago,before he was getting 100yd groups like you are at 200,he was a big fellow and recoil didn' t bother him,but after the trigger job he got several one hole,3-shot groups with some 130 and 139 reloads I did for him in the 3000 fps range.