I am kicking around the idea of either a 22BR or 6BR, maybe a 6 Dasher or BRA for 0-400 yard varmint work. I plan to run 55-70s in either caliber and shoot from a field bench or prone. I would like to use a contour in the neighborhood of an MTU, M24, #8, or #9 finished at 26". It will be built on a Pierce SA single shot. I really like McMillan stocks so have been looking at options from them. The two stocks I'm looking at are the A3 and the Varmint. Are there other suggestions I should check out and consider? Thank you