I know that someone here will know the answer to this but I couldn't find anything with the search function. I have a 300WM on a M70 action. I've gone to a full-length mag box and follower to take advantage of the length of the 210 Berger and 208 AMax and to seat them out to the lands. What effect, if any, will the long seating length have on chamber pressure? I would think that with the bullet protruding less into the case (OAL 3.664" with the 208 AMax) that there would be more room in the case and, subsequently, a little less pressure. Can anyone confirm this or set me straight? Average velocity with the 208 AMax and 72.4gr of RL22 was 2902 (though just for 3 shots) which is 50 FPS faster than Hornady says it should be from a 25" test barrel, but my rifle wears a 29" barrel. I'm wondering if there's a big more room to go up. The load looks like it wants to perform better as the charge goes up (1.2" at 71.4gr, .97" at 71.9gr but, like a dummy, I shot this one first and forgot that I was dealing with a cold clean barrel and the first shot was 1.4" from #2 and #3 which were overlapping - another reason to shoot more than 3 shots in a group!). Thoughts? Advice? Thanks in advance.