Interesting, I had never looked at close at either the 42 or 43 rifling. The 43 is just like the 42.

As an aside, the more I carry the G43 the more I like it. All weekend I carried it in my Stealthgear AIWB and it's been very comfortable and conceals very easily. The same can be said of the 42 but the difference between a 90gr Gold Dot at 1200fps and a 124gr Gold Dot at 1300fps is significant.