i went shooting this morning. i took my 300rum and my 7mmwsm both built by nate. there was a noticable difference between them. the 7mm is around 14.5 pounds and the 300 in 9 pounds. i shot 20 rounds form the rum and 40 from the 7mm i can barely feel it.
here are a couple pictures form this morning
first group during load development at 600 yards for the 300 rum
this is the group that my 7mm did at 600 yards