I have a 1897 in 12 gauge according to the serial # made in 1900. The barrel is poor so I bought a different one and by its # made in 99...problem is that the barrel I just got has threads top and bottom to lock to the receiver but my receiver and old barrel thread lock side to side... do I need to get a certain model or year barrel ? would like to know to sell the barrel that doesn't work and for next try of a new one.