Well, I guess I've got a somewhat improved 375. I had a hair up my patoot and got an extra RSM in 375 and had a dude run a 375 Ultra reamer through it and converted it. The rest of the conversion will be done during the year as to opening the rails and getting proper pregnant floorplate so's I can get an extra round or two. Recoil on mine is very close to a 416 Rigby, but it sure is something to shoot. It seems to be almost as accurate as the parent H&H as long as I can flinch correctly.