7mm Rem Mag vs. 300Win Mag

[rem 700]

Be careful with 150 grain BTSP's. They're not a long range round: they make massive energy deposits under 300 yards though. As for those massive 200 grain bullets from a 300 winchester magnum, they are made more for heavier game than deer. The expansion from the bullet is more suitable for heavier animals where first the bullet must pass through heavy bone and muscle, and then expand for the vitals: with just deer, over long range, that quicker penetration is more important for the clean kills: the vitals penetration is already there with either of the cartridges.