jb weld for beddding
I am a user of Devcon Plastic Steel Putty, for bedding; however, the best grouping of any bedding I have done, was with JB Weld, original, with KiWi, natural shoe polish. I bedded the rear of stock, and first 2 inches of z-block, with A-683 for pillar, and 1/4 x 20 take down screw. Resulting with .0XX groups at 25yds, with Leupy 36X, Clark 21 inch barrel, in a Fajen stock.
I always had good results of 1/2 inch groups at 100, with my deer rifles using Accuglass , and reaming out take down screw holes, and filling with the Accuglass to form a pillar, after heavy coating screws with Johnson's Paste Wax, and floating barrels. I know it is not the way; however, it worked for me. The liquid form of Accuglass is messy, but seems to fill all areas of woodwork well. This was back in the day, and now I use the Devcon, but have not repeated the grouping I got with JB Weld. The grouping with deer rifles was with hand loading IMR 3031, in 308, and IMR 4831, in 270.