You might be interested in an article that John Krinfield wrote regarding the 400 Brown Whelen. BTW: when I had a 35 Brown Whelen I compared the fired cases to 280AI cases - as far as I could see or measure the cases were close to identical except for the neck diameter.
I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
