I am a big fan of Krylon texture spray, the texture is just enough to give a good grip but not so rough that it is irritating to the cheek. Not a lot of prep work needed, I just wiped the stocks with degreaser and sprayed them, both have held up for years. The nice thing about the Krylon is that if you do manage to chip it or do something that requires a touch up all that is necessary is to just spray over it and it is as good as new.
Cooper 57M painted with Krylon texture - desert sand
Rem 700 also with Krylon texture - a medium dark green