Originally Posted by
Failure2Stop
Despite my dour post, I am actually a big .308 gas gun fan. I love the way it smacks steel out to 800 meters, drops hogs, and at matches makes 5.56 shooters green with envy when a decent .308 shooter beats them at run-n-gun. There are really solid ammunition choices for every application, and while recoil is a factor, my 8 year old can shoot my suppressed APC and keep asking for more.
All of that said, the average line unit kid doesn't receive 1/10th of the instruction that my 8 year old has, and that's only the first problem with widespread use of 7.62. Lots of folks are reading these articles, but failing to see the trees for the forest (yes, that is intentionally reversed). The problem, as far as the program is concerned, is less about shooting and more about piercing armor. The problem, as far as reality is concerned, is that it isn't focused enough on shooting, therefore making armor penetration less relevant. I don't know where the fallacy came from, but 16" 7.62 gas guns are not easier to shoot than 20" gas guns, and 20" gas guns are not easy to shoot well. It takes work, practice, determination, and experience to get to a good place with them.
The other significant problem is carrying ammunition. 7.62 magazines are bulkier, heavier, and less friendly to the average hand than 5.56. Average loadout for 5.56 is 210 rounds, spread over 7 magazines, with one in the gun and six on body. The largest practical .308 magazine is the Magpul 25 rounder, and even with them, you're going to need to cut to 200 rounds in 8 magazines to be anywhere near realistic on-body magazine space. This is a pretty involved topic, and rather than typing out a novel, I'm just going to skip ahead to weight. Those 200 rounds of 7.62 are going to weigh over 10.5 lbs, as opposed to 210 rounds of 5.56 at 4.2-5.9 lbs. Yeah, we can get into lightweight alternate case material, but a project that takes two years to get the weight of the ammunition alone down to where it's not excessive is hard to make the hinge point for an interim program.
That said, there is definitely a place for a 7.62 gun, but it's a specialist/niche material solution that depends on the skill and strength of the individual user to show clear advantage.