I'm thinking of trading for a Savage 24v series c or series d over under and 222 caliber over 20 gauge. The trade will likely be for a partially converted Russian Saiga 308 in excellent condition with 1 mag. The only conversions to it or it has all black furniture and accepts double stack mags. What are the merits of the Savage 24v other than the obvious flexibility of the 222 over the 20 gauge? how good are these rifles and what is their current value in very good but clearly used condition? What is the difference and relative value of the series c versus the series d? The receiver of the series c the metal is discolored, perhaps intentional by manufacturer like unsung old heat tempered metal, or looks like how oil looks in a puddle. is that an issue or is that something that was a feature of the rifle? Looks like it could make fun turkey hunting gun for my 9 year old or just a cool and useful once in awhile hunting gun and collectible. But the Russian Saiga seems to have much more potential to go up in value.