Well unsure as to what you want to know, but I have owned a few over the years, from a Brno (CZ) 602 to a couple of 550's and I am rebarreling another 550 to 416 Rigby at the moment.
All have been very good shooters and the 400/410gr pills work very very well, in fact, I also have a 458Lott, and the Rigby out penetrates it by a good deal in my bullet boxes.
It absolutely rocks the Water buff we have here in Down Under, most high shoulder shots have them nose down instantly and rarely do they get back on their feet, it will also go from stem to stern from all angles with Woodleigh 410gr RN's. Follow up shots are only needed when the first shot is fluffed slightly and I have never had to put more than 3 shots into a buff with the 416, but I have with the 458Lott, which surprised me as the placement was good on all shots, anyway, you won't go wrong with a 416 Rigby.
Cheers.
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