I picked up a couple of the Greener Martini police actions at a recent gun show. I am going to build a 12 bore rifle on one of them but am looking for some thoughts from you gentleman before I order a barrel.
E.R Shaw offers a 24 inch 1 in 28" round barrel but I am more inclined to go with a longer twist, say 1 in 88" and octagon. The Gun Works has said they could do a 4140 barrel for me and they'll cut about any length and twist I want. I'm thinking the octagon barrel will weigh enough more than the round barrel to mitigate the recoil to a degree and I would like a bit longer barrel.
I intend to shoot primarily round ball in this rifle with brass cased shells. I may also use a conical from time to time. I know Accurate Molds has a couple of good looking 12 bore conicals.
I'd welcome any thoughts on this build as to barrel length, twist rates, bore and groove diameters, anything you thing might be helpful.
Thanks in advance guys.
Marty
