Home Forums Hunting & Shooting Ask The Gunwriters Pre-64 Versus Today's Model 70?

Usually when it is said rifling is broached that means the grooves were all cut in one pass with a gang broach like this:





When it is said rifling is cut we're usually talking about the machining being done one groove at a time, and with many lighter passes of a hook cutter like this:





Of course, they are both cutting mechanisms. Which did Winchester use?