Glass bedding

Does glass bedding work in a synthetic stock for example a grs stock
Cheers

Yes, I modified a Mossberg synthetic stock to suit a Norinco action and haven't had any problems with it at all. The trick is to make little pockets for the bedding to grip into and rough up the other parts so it has something to bite.

Yup absolutely. Take a look at Nathan fosters terminal ballistics site for the how to videos...