I have a J. Stevens Springfield 16 gauge that I'd like to find a new stock for. It's in about 70% condition at best, but it was my dad's and I'd like to get it back to usable condition and give it to my oldest son. The existing stock has a number of serious cracks running from the action parallel to the tangs.

How do I tell which model stock will fit? Or put another way, to which Savage model sxs is this the equivalent version?

Thanks.