i would think you just order longer than normal by 2-3 inches and set back to extend the already extra life of the modbb, start at 28 and every 3500 set back and inch or two and you get 7,000 plus on one bbl...
All the way back in 2015 when I started reloading I was using a neck sizer and I thought I was FL sizing and guess what? It sucked, I couldn’t even chamber a 1/3 of my rounds and created pressure issues....never again