That's what they used to call it a while ago. (acraglas) Had fiberglass cloth shredded and mixed in the compounds.
https://www.hinterlandoutfitters.com/brownells-081050100-black-glass-bedding-p-9841.html
Thinking about building a lightweight varmint rifle in 6ppc, action would be a Remington model 7. Anyone know if the rifle would function (feed and eject) with this cartridge?
I know PTG sells bolts for the model 7 with ppc boltface.
Thanks Joe
Anyone receive any of the 30 cal bullets to test yet? October 3rd results are supposed to be reported, that doesn't leave a whole lot of time to test!....Joe