Originally Posted by WoodenPlank
I'd try a bit of both before buying in bulk. The last Colt barrel I had did not like steel cased at ALL.
Only shoot brass case in that colt! If its the 1 in 7 twist then its close to precision...tight tolerance....you'll get a steel casing stuck with hot carbon. JMHO!
"Be sober, be vigilant; Because your adversary the Devil walks about like a roaring lion, seeking who he may devour."