GMs biggest mistake was discontinuing IBS, Sharpshooter and LRH barrels. They were a damn good barrel for the money. The LRH or Sharpshooter barrels were cut rifling too just like the BPCR barrels.
A few of the Knights used a GM cut rifle barrel such as the 45cal 1-18 DISC Target model. Some early 52cals may also been cut rifling and very early Master Hunters. One of the odd ball MKs in 45cal may also have been cut.
I prefer Douglas for my inlines but they are not the best. Ive just had great luck with them for a button rifle barrel. Very uniform and not overly picky about loads.
