ROLL TIDE!!ROLL TIDE, I don't know about the rifling twist..but you can have a carbine barrel made through several custom shops..including FoxRidge(T/C's custom shop) in lengths up to 26" I believe, and with some shops you can dictate what twist you would prefer..
as far as the rifling twist it is 1 in 20 for both by the speer reloading manual. T/C dosn't show one for the Contender or the Encore in .445 SMag at all. But just about all the custom shops make them.
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