Don't know about published. As far as real world experience,the Officer frame is a Schuemann match barrel,the gov't frame is a Kart National Match barrel with a fitted bushing. Both guns are accu railed. I can't see any difference......Has anyone done and published an evaluation of the accuracy of a bull barrel as opposed to a fitted bushing barrel in high end 1911s?
A coned barrel gun has a completely different recoil pulse,in my experience.And no matter what caliber or barrel contour,they are,in my opinion,faster on follow up shots. Just a personal observation,from shooting both 1911 types. I think the fact that both the guns I pictured are accu-railed,that the frame to slide fits are within a couple of tenths(as in .0002) or less,of each other.Thus giving a more verifiable reference,in regards to fit.If there's any difference, it is so microscopic that it would be difficult to prove. E.g., how could someone prove that the guns tested were each built to an identical degree of virtually perfect fit.
Now, as to rapid follow-up shots (no Ransom rest), a heavier barrel will tend to be more accurate ... but this is due to the shooter reaction to the gun's recoil rather than to the gun's intrinsic accuracy.