A couple years back PS magazine had some articles by a fellow that did his own stocks for 600yd BR. Can't recall his name, but he got on the map by setting the new 600yd group record of right around 5/8" for 5 shots with a .308 Win using an old Hart barrel...

Anyway, IIRC, he went down to the local box store (Lowes/HD) and got S4S poplar and glued up his blanks from that with Titebond... nothing super special. I've been tempted to 'prototype' an idea or two that way; just never seem to get around to it.