I've wondered the same thing...

Would the advantage of the larger hole equate to higher scores over time simply due to cutting a scoring ring? The difference in the radius isn't huge, but it could add up.

Or......is that numerical advantage outweighed by the lighter weight and lower recoil of the K-frame guns? My own 1950's are a joy to shoot, but I always seem to score a point or two higher with the 14-3 or the K-22 in informal practice.