That one will have the interrupted thread, so it comes off in half a turn. Sometimes you can find a barrel on e bay, I have a .303 spare barrel but not sure of the bore condition. I have 4 1899A takedowns in all but the .32-40, the search continues!! When I replaced the .303 barrel I was thinking about having it re-bored to .38-55, and have a switch barrel take down, but the .38-55 would not feed in the .303 action. I since found a .38-55 for less than the price of a re-bore. Sometimes I get lucky.