Yeah, especially the 40 V-Max, as I noted--and luckily I've got a pile of .204 brass (which ain't going to be turned into .22-204's). But the difference ain't enough for somebody just starting out to worry about.
One interesting thing about 6mm varmint bullets is that the lightweights such as the 55 Ballistic Tip sometimes have higher BC's than the same weight .224. This is because the 1-12 or 1-14 twist in many .224's won't stabilize a really long 55, and the 1-9 or 1-10 twist in typical 6mm's will. The 55 BT at 4000+ is a hell of a long-range PD bullet on calmer days.
