I've only used a donut once, It was butt ugly but worked wonders with a Win Featherweight 25.06.

Bedding and free floating did nothing, pressure point gained little, donut got my loads down to 1-1/4" at 100yds.

Never did hunt with that gun and sold it to a buddy who promptly removed the donut. It was really hanging on tight though.

"Camping places fix themselves in your mind as if you had spent long periods of your life in them.
You will remember a curve of your wagon track in the grass of the plain like the features of a friend."
Isak Dinesen