The Choate isn't a chassis stock, it's a polymer stock with an aluminum V-block for bedding (not angle-iron). They're big, bulky and heavy which is great for Andre the Giant types, but most average size folks often refer to Choate stocks "Choate Anchors" for good reason.

The V-Block doesn't offer any benefit over a properly pillar and glass bedded stock so don't let the absense of one deter you from other brands/models. Unfortunately with the chassis craze that's hit the market in the last 10 years finding high quality laminate or synthetic stocks for a Savage just keeps getting harder and harder. Savage's insistence on continually changing things doesn't help matters either.