My personal opinion is that cyl boring is about al most of us really need for most upland hunting as long as modern plastic wads with shot collars are used. For any still loading card & filler wads I would have to agree with Burrard that little is given up in effective spread but a lot of pattern uniformity is gained by use of a mild choke. Even with shot cups a J P Clabrough of mine with both bbls having about .010" of choke using mild (not extreme low pressure) 1 oz loads of appropriate shot size was one of the most effective guns I have had the pleasure of using in the uplands. That .010" or what the British called 1/4 choke is an extremely versatile choke. I certainly will not agree with Mac that plastic wads made it obsolete. In fact I can recollect no time that I felt that .010 of choke was a handicap in that Clabrough.
