I personally prefer cut rifled barrels. Brux,Krieger, Bartlien, channlyn, and rock,are all good.I had a couple bad experiences with buttln rifled barrels.
Who rebarreled your rifle ? I have a mark v 7mm WM- tried everything known to man to get it to shoot--NOT.There are lots of great barrels, have a Lilja on one of my Mark V's very good results with it.