I have a legitimate question as I am very ignorant to shooting, especially at any sort of distance. With regards to a new caliber, say 6.5 Grendel that is supposedly able to be more effective at 600+ meters; Can soldiers even see the target to effectively engage them at that range, regardless of caliber? Based on our current training, is it reasonable and likely for a soldier to engage (and effectively) at 600+ meters? While I understand the need for a caliber with more terminal performance within its current operation use, I don't quite follow the notion of extending the effectiveness of the caliber beyond the capabilities of our soldiers. However, I am sure that I am missing something in my thinking.