I haven't been here for a bit... lost my bookmarks. Did something really stupid to Firefox by not paying attention.
Anyway, that is a trick (cheap "bedding") that some WWII snipers used.
Another was tweaking the trigger, similar to this Finnish technique:
That trigger spring mod makes all the difference. I did it to mine, though I polished and bent only, didn't file as I do not believe in changing sear angles. Still, it's a very smoooth, light trigger which lends itself well to precision shooting.