That's about how I was trying to put it Larry. I do know that some U.S. ammo imported here in the 70's gave rise to quite a bit of concern. I still have quite a few boxes of Winchester Upland from that period. I'm quite happy to use them in Spanish guns proved to 900kgs. (our old 2 3/4" magnum proof equivalent) but not in 2 3/4" British proofed guns. Our Winchester shotgun stuff that we get now comes from Italy and is CIP approved. Lagopus.....