I have a magnum model 7 in 300 SAUM, was a bugger to find a load for it, finally found 2 that shoot very good. It had a vias brake on it when I purchased it. Lots of weight loss and upgrades later and it’s 7 pounds with a medium weight scope on it. Could be in the 6.5 pound range with a lightweight scope. The recoil with the break is actually less than a 6.5 creedmoor.
Haven’t tried it without the break, but with the stock design I would think it wouldn’t be bad.