I inherited Weatherby .300 Magnum Mark V Deluxe and Browning BAR Grade V 7mm Rem Mag rifles from my dad. I bought Norma brass and a set of Redding Competition Neck Dies for each. After firing and neck-sizing the cases 3 or 4 times, they became difficult to chamber so I full-length resized them. When I used a micrometer to check the cases I noticed a slight bulge above the belts. Larry Willis lives near me, so I was able to get one of his dies in just a couple of days. It removed the bulges and since then I've used it every time I full-length resize. Maybe it's just me, but I thought it was a bargain compared to replacing my dad's rifles.