I think I know what the problem is but wanted to float this past a larger audience. I have a new Sendero in 300WM that I'm working a load up for at 100yds out of a sled. Best groups came with 185 Berger Hunting VLD seated .025 off the lands and 80grains of H1000 (3260fps) with 8fps as the max difference according to the chrono - sub 1/2 groups. On Sat. I took it out to put on paper at 200yds but couldn't get it to group. I was prone on the rifle in a terrible position and I changed positions a number of times yet all prone (different cheek positions, shoulder anchor ect) which seemed to move the point of impact all over the place with each change I made to rifle hold. I expected some level of POI change moving off of the sled but it went from .5 moa groups at 100 to 5" groups at 200 and moved all around with each position change. I believe my problem is the different rifle hold/positions but I didn't bring enough ammo to prove this to myself. Thoughts? Does the hold affect POI this much?