Guy on armslist has a 1973 model 1894 octagon 44 he is wanting to trade for an 1894 in 357. I have two model 1894 357s I also have two stainless 1894 in 44 mag. I have three sons that i am collecting for. How rare is this octagon barrel 44? They can't be too rare as my brother has one he swapped for a while back? Would you trade? Why or why not?