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I had mine in the vacuum bag for about six hours, then trimmed the sides flush with the mold. Then joined the two halves together.

Freezer no idea sorry. It would probably stick would be my guess

Just bed the first parrallel section of the barrel, you don’t need to go any further.

I used Sika boom expanding foam to fill the butt and fore-end. It has no structural value just sound deadening. Run a bit of water around inside the butt or fore-end first then tip/shake it all out....

Looks bloody good. When I was making mine I did 4 layers of 200gsm carbon fibre and another 3 layers through the pistol grip area.