While I have never had a 24 gauge, thus no actual experience, I am Firmly Convinced there is "NO Magic" in any bore dia. The 24 falling between the 20& 28 should thus fall within the same useful range. As long as comparsion is made with same class of loads, IE no "Modern Magnums" it should simply fall between them.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra