For sighting in and breaking in a barrel (I'm old fashion) I use a lead sled. At 78 I'm not that good a bench rest shooter anymore and losing the vision in my right eye has forced me to go to left hand rifles so the lead sled is my go to rest.
I have a wood bench it shoot off of and I going to try some foam under my bipod to help deaden the recoil jump. Right now I am making different loads so I am using a bag up front it keep it steady …. but I prefer using my bipod.