I neck size for bottleneck cartridges, the 22 Hornet in particular, and a 7mmTCU. I don't index anything. The reason to neck size is shot-to-shot consistency in the powder charge. 22 Hornet cases and 7mmTCU (which is 223 reformed) are cheap. I'm not the least concerned about stresses on the brass, just that the powder charge remains the same so, I have the same push on the bullet.
If it were a 300 super-duper something Benchrest with Lapua brass, maybe, but it isn't.