If you had to go to Afganistan (or survive another LA riot), and fight against god knows what type of dudes, what type of round would you like to have best if you wanted to shoot it through a 16" 1/9 twist upper? Forget junk like the Geneva convention and how much it costs... I'm looking for the no-holds-barred best choice. I'm thinking that the Nosler 55gr bullet is best, but I'm worried about how it might "explode on contact" and fail to get any real penetration, which might be an even greater problem when going up against even light body armor. I'm also leaning towards teh 55 gr weight because, after reading countless discussion on this topic, it seems to be the only way to go when your velocity is limited by the shorter 16" barrel. Keep in mind that good trauma plates seem to be able to stop everything up to AP 7.62 NATO, so maybe all armor piercing arguments are irrelevant? What do you think? Especially you, Tatanja, I know you're out there and you've helped me with a similar question in the past... I'm just looking for the final answer now that I'm a little wiser. Thanks in advance.