Just a thought? Did anyone review my post? It explains the issue in regards to the ammo issue. When the original M-16 was issued to the military, - BTW, Colt got the design from Stoner - , the barrel had a 14 in 1 twist. Now the military M-16's have a 1 in 7 twist. This resulted is longer ranges, and one reason was that the result would be more wounded and reduced kill ratios. This will tie up the enemy's resources to attend the wounded, at least that was the military planner's reasoning. With a 14 in 1 twist, the exit wound would be the size of an orange and more internal injuries were more prevalent due to the slower ballistics - fps and the tumbling effect. Both the VC and NVA used to have a saying: "Beware the soldier with the black gun" - this was with the 14 in 1 twist. One other important piece of info: when the M-16 was first issued to the troops, ball ammo was issued. As a result, there were many jams. Also there was no specific cleaning and maintenance procedures, and many troops were under the impression that you could rely on the weapon without daily cleaning. The truth is the M-16 was unreliable if you dropped it in muck. Unlike the M-16, the enemy could drop his AK in muck, dirt, and leech infested water, and the chances were very good that it would function more reliably. Also in the beginning, there was no 3 round burst. This was implemented at a later date, because the fresh troops would get excited and expend their full magazine. Thanks for listening.