Ok so I've shot guns before with my dad but never really known much about them, including some terms, might screw that up. Anyways I'm looking for a chassis system for a Winchester model 70 XTR chambered in .300 win mag. I inherited it from a great grandfather and it had a bright shiny wood stock on it. Personally I hate the stock and would much rather have a olive green or black tactical chassis system on it. I've seen chassis systems for other model 70s, specifically the model 70 SA, however I have no idea if that would be compatible with my rifle.