Dan Lilja has a barrel weight calculator on his website that I've found to be fairly close when figuring barrel weight.

Ill be curious about how the canted dovetail works out for you. We shoot midrange fullbore so I need to be able to zero my scope for 300 yards. Twenty MOA was too much on my Winchester so I machined a custom rail at 10 MOA. I'm 2 MOA high at 100 yards bottomed out on travel leaving me the full 40 MOA of internal scope adjustment available plus the hash marks of the reticle.