Latest test. This is on a .224 Valkyrie. Shortest is 0.010" below mag length (2.250"). Longest is 0.030" longer than mag length. My mags will allow me to go longer if desired, but it sure appears to like a little more jump.

The dimensions on the targets correspond to the direct reading off the caliper using a bullet comparator. Hence the confusion. All shot indoors at 100Y. I got good breaks on all but one shot that went off a touch early.

https://i.imgur.com/gLPsmZo.jpg[Linked Image from i.imgur.com]

Last edited by Tim_K; 03/11/20.