Having had both Savage and Longbranch No4's I have tended to find that the Longbranch rifles tend to have a better finish, particularly early production. As for accuracy they are pretty much the same. My favourite No4 is a 1950's Longbranch that is as new condition. If I had to convert a No4 to 7.62 I would use a Savage action as they tend to look appear a bit more rugged or maybe its just the look of those unfinished machining marks that give the impression.