. BTW, has anyone figured out how many 6.5 caliber cartridges are out now? Gotta be nipping at .30's heels at least, counting ones currently for sale anyway.
Just looking at cartridges of the world there were at least 18 in the 7th edition from 1968 and this pre-dates the 260 Rem. 6.5 Rem and at least a dozen more not counting the less mainstream wildcats. So well over 30 is best guess.