First I would have to say the Ruger lug isn't angled. The lug itself is vertical. The front screw is angled. As far as an advantage or disadvantage There isn't really any that I can see.. A ruger action is no harder to bed than most any other. it is however a little different than a remmy and there are lots of smiths that could bed a remmy in there sleep and a Winny with one eye open would hesitate to do the ruger.

The ruger lug does have at least two disadvantages worth mentioning.

The first is the ruger lug is intergral to the reciver so you can't replace it like you can with some others.

Second it could be a little larger. I know that people will come down differently on this but on vary large cal rugers which are in fiber glass stocks with a "soft" construction in the lug area I have heard reports of problems. Myself I have a 338 tang safety in a B&C and once had a 358 Norma in a Mcmillan and neither had a problem.

I would be interested to see if ruger did anything different in the "alaskan and african" 375s.