doemaster,
Gluing the action in, subsequent to bedding, can be a very effective rifle building technique. I think it may be the easiest way to produce a sub 1/4 moa rifle. A properly bedded screw-in can work as well but is a bit more difficult to achieve. The glue-in is far from a panacea however. A poor glue job will shoot just as poorly as any other poor job.
For a long time the glue-in was almost universal among BR shooters and glue-ins out number screw-ins even today so it must still be viable. Regards, Bill