It's just a what-if question, but has anyone done expansion tests at long range? And no, not on a gong! /ubbthreads/images/graemlins/grin.gif Seems like every time I read about (reduced) velocity expansion testing, it has been done at fairly close range, with somewhat reduced loads to simulate impact at longer ranges. This method also has the reduced rpm that goes along with a slower load. There might be quite a bit of difference between loads started at 3400-3500fps, and loads started at 1800-2000fps. Given that they impact at near the same velocity. It's my idea that the centrifugal force would play a large role in bullet expansion. I thinking big game bullets here, not varmint bullets, though the same rule would apply. While bullet speed drops rather quickly, I don't think the rotational velocity changes very much. leastwise that's what I've read. I just got to wondering... And it seems like folks on this board have "Been there - Done that" on just about everything. Maybe someone's done this???