Official weights.
300rum .....8lbs, 9oz...so just a smidge above 8.5lbs
375 H&H . 9lbs, 15ozs.... just a smidge below 10lbs
No comparison, 300rum carries way easier, more balanced.
375 is bbl heavy, but for good reason. Very easy gun to shoot, recoil is really just a push, very accurate rifle, as is the 300rum.
Recoil on the RUM has been tamed, via a brake. Also very easy to shoot.
Tony
From experience, guides hate the noise brakes make... just saying...