i have two #1 B,s both win 26 " barrels with out sights but with quarter ribs for scope mounting, one is a .223 and one is a 300 win mag full forends and the barrels are lighter than a 25-06 heavy barrel #1 that had with target type bases(no quarter rib) that i sold. the most important thing i have done to my six remaining 1,s was having a little metal removed from the rear of the quarter rib, so it didn,t have any contact with the front of the reciever. my favorite # 1A is a 35 whelen with sights. eastbank.