You will have no problems with Seekins base and rings. As mentioned, he uses 7075-T6 which is roughly twice as strong as the 6061 most alloy bases are made from. And the type III hard anodizing increases the surface hardness of the aluminum greatly.
I would recommend Seekins rings
though. With their much larger recoil lug vs. a small flat side of a crossbolt they distribute the recoil load over a much larger area. When using my first homemade base from softer 6061 with Badger rings the crossbolts were imprinting on the base from recoil. Seekins rings put a stop to that. Of course I later switched to a 7075 hard anodized base but it was interesting to see how the Seekins rings just did a better job of distributing the load to the base.
I also recommend bedding the base to the action. This eliminates the strength of the screws (and that of the aluminum around the screws) as a worry as well as preventing distortion/preloading due to the base not matching the receiver perfectly.