I've seen ballistic gel tests of the 7.62x51 M80, and judging by them, common .308 seems to be a much better round for live targets. While I'm 100% confident that these are both highly lethal rounds and will probably kill in a single hit, do you guys think they'd stop a target immediatley, or would the M80 take more time for a target to become incapacitated, regardless of if it'll die later? Ballistic Gel illustrations: http://www.dtic.mil/ndia/2008Intl/Roberts.pdf Page 21 and 22. You can see the Hornady OTM 7.62x51 causes a MUCH larger wound than the M80. What do you think would be a more effective cartridge? Has anyone had any experience with these rounds?