Question - wouldn't a Swift, with it's similar uber speed (maybe 100 fps slower average looking at Hodgdon's site data), burning of similar powder loads (re: Hodgdon's again), etc. have similar bbl. burning qualities. Also, curious of more people's experience with annealing this brass first. Not a fan or detractor of the WSSM's, but what I have read on these, sounds like Winchester's last union-produced guns had some crappy bbl's, and since they produced the only brass, if that quality was crap, or chambers sloppy, issues may abound. Sounds like overall the Winchester's had issues, and the Browning's worked out.
Never heard of a cartridge too fast - just be ready to pay to play - like the above-ref'd drag racing. There was a day that someone probably said that the 222 Rem. was a solution in search of a problem, and was too new, too sharp shouldered, too fast, too barrel burning, and that the Hornet would live on and conquer all forever....or something like that.
I'm seeing well-smithed and designed guns shooting all manners of cartridges into little bitty groups with quality components, and shooters. To me, and I am NOT the best shooter, liking one cartridge over another becuz most groups you've seen are are a tenth or two less is silly. But I'm a hunter/reloader, not a bench shooter. I'd never shoot that bbl. out at 1000 rounds or so.
