Just recently had a brand new .308 cooper rebarrelled to .338 federal and had hoped to take the rifle to South Africa. Upon reading some regulations on a travel website it stated that the serial number on the barrel should match the serial number on the receiver. Is this actually something that would negate the decision to take the rifle to SA for a plains game safari? Anybody have any experience taking rifles that have been modified with new barrel calibers to SA? This came as a big surprise. Thanks.:doh: