I tried a base similar to what pl270 was thinking of using in a 7mm Rem. Mag. and the recoil bent the metal where the ring slots are.
Whatever they're made of, SSK Industries' T"SOB bases are very good and would be more than adequate on a 35 Whelen; they're what I use on heavy recoiling handguns. I don't switch scopes on heavy recoiling handguns but do on rifles, thus my preference for Warne QD rings and Warne bases on the latter.
Putting lighter weight rings on a scope is not going to subject the scope to less recoil, by the way. If anything, the felt recoil with lighter rings and therefore a lighter gun will be more. In any case, the difference in weight between steel and aluminum rings/bases compared to total gun weight isn't that much so any difference in felt recoil would be trivial.
I also have all the stuff to lap scope rings but have never done so. and I've probably mounted a minimum of 5 scopes a year for he last 5 years. In my opinion, if you buy good rings made with precision, you should not need to lap them.