Saw an auction on what was listed as a K31 7.5 Swiss/.308 Win. Thought that was rather strange. Sent the seller an email saying which one was it, since the cartridges are NOT the same. This guy is selling a boatload of milsurps, how could he screw it up that bad? Finally replied and said, yes it's a 7.5 Swiss, and changed the auction wording.