There are at least a dozen popular products used for rifle bedding. At one time or another, Richard has tried most of them. Devcon 10110 "Plastic Steel® Putty" is the only compound he currently uses and the only product he endorses whole-heartedly. "The Devcon 10110 is expensive, but it is the best bedding product I've found. First, it sets up extremely hard. That is very important to the performance and longevity of the bedding job. You want it to get it as hard as concrete. You need it really hard so when you tension the action screws it doesn't squish down or migrate. Some of the brown stuff other folks use is way too soft. Marine Tex is also too soft. Many products will shrink. Any compound that shrinks is useless in my book. Devcon has absolutely near-zero shrinkage. Acra-glass I keep in my shop, as it is useful for stock repairs. However I would never bed with Acra-Glass.
Many moons ago Bob Pease(RIP) got me using Devcon F(putty)-F2(liquid) for bedding material. Later on started the Plastic Steel also. Haven't used Acraglas for bedding since.outofstater said:You amaze me Bill, my old friend Seely Masker got me on to using it. I used accu glass also, one evening i did 2 dining room chairs and my ball starter.