I put together a light weight varmint rig for walkabout varminting using a Rem model 7 action, Mcmillan edge hunter stock & No 4 contour fluted 24" barrel chambered in 6BRX. It's a fantastically accurate rig but it is very difficult to shoot as a result of the weight of the rig & the stock design. All of my shooting is done prone off bipod so were thinking a change to something like a Mcmillan A3 or A5 with edge fill simply to help give more control & a steadier hold with the improved stock design. Any other stocks I should be considering? I still want to keep the rig light but want a better proportioned stock to make for easier long range shooting of the bipod. Ideas?