I've bedded two SA 1500 rifles in laminated stocks. I installed 1/2" OD pillars under both the front and rear guard screws. On the front I tape of the bottom of the recoil lug for full contact with the pillar. Both shot very well and the rifle in 6 CM is the most accurate factory rifle I've owned.
Neither was bedded forward of the receiver and the barrels are floated about 20 thou. full length