Hi all. I've never come across this in all the years and with all the brass I've ever bought. Jumped in a purchased a 17 rem after wanting one for years. Here in Australia it can be problematic getting components, but managed to get hold of 200 pieces of new Remington brass. I get them home only to find the cases have an outward flare on the case mouths and quite a pronounced lip. Wondering if anyone has seen this before.