many years ago a very dear friend made some very special concentric gauges for his ammo company he made 3 of them for worked and 1 extra and that went to me . i still use this tool and that taught me the difference in neck sizing and full length brass sizing . shooting competition at 100 - 200 yards also was a huge help , 600 FTR and 1,000 yds. winter money shoots all help , but the biggest help was Jonny Bell answering my questions about guns and reloading while we drove to go fishing or hunting over 20 some years and my Uncle Stan both engineers at Federal Cartridge and some other employees that worked there they all were a great help.
