Does anyone have any experience with Estate Brass?, my FFL in PA used to sell tons, literally, of their shotgun ammo, and I was told that it is made by Federal. I looked up the main site of Federal and it looks like there are a lot of companies that are owned, or under the oversite of one giant company. That being said, if it where made to the same spec. as Federal would it be good brass? I have heard that Winchester is good, any info would be appreciated. I would be using it for .270 Win, and probably not to max, I care more about the group size, but may in the future use for Elk, which would mean a heavier and tougher bullet, and higher pressure. Thanks.