Ballistics Table in Yards 5.56 ammo (remember .22 LR muzzle...1,400 fps)
.224 68 gr., .355 B.C.
www.hornady.com
Range (yards) Muzzle 50 100 200 300 400 500
Velocity (fps) 2800 2671 2546 2306 2079 1866 1668
Energy (ft.-lb.) 1184 1077 979 803 653 526 420
Trajectory (100 yd. zero)-1.5 -0.1 0.0 -3.9 -14.3 -32.8 -61.3
Come Up in MOA -1.5 0.3 0.0 1.8 4.5 7.8 11.7
Ballistics Table in Yards 7.62 ammo
30 Cal .308 168 gr BTHP 168 gr., .450 B.C.
www.hornady.com
Range (yards) Muzzle 50 100 200 300 400 500
Velocity (fps) 2700 2600 2503 2315 2134 1962 1799
Energy (ft.-lb.) 2719 2522 2337 1998 1699 1436 1207
Trajectory (100 yd. zero-1.5 -0.1 0.0 -4.0 -14.6 -32.8 -60.0
Come Up in MOA -1.5 0.2 0.0 1.9 4.6 7.8 11.5
A Battle Rifle is the rifle the majority of troops carry into battle, for 50+ yrs that has been the M16 and now the M4. It is not perfect and has certain limitations. The military has been searching for the "Perfect" 5.56/.224 bullet for some time...we keep hearing about the next "Miracle Bullet" that is going to make the 5.56 as good as or better than the 7.62. Scientifically, that would violate all the rules of physics.
As you can see from the charts above, the 7.62 is three times better at 500 yds than the 5.56. Does that mean every soldier needs to carry an M14 or similar size rifle? No? And the military is no going to go back, because of many factors we have discussed...mostly money. Nobody wants to drop that cash when 90% of the troops are happy with the 5.56.
The main problem as I see it is the 5.56's maximum effective range is realistically about 300 yds. I love my AR and I have shot it out to 600 yds and hit paper, but it probably has less power at that range than a .38. Very few people think the .38 is a good combat round.
House to house in Iraq, the M4 was well received. The short-barrel rifle is a lot better at clearing houses than a full-sized 7.62, and there is less chance over-penetration with the 5.56 through flimsy walls...where civilians may be hiding. The 7.62 will shoot through vehicles, walls and people.
Moving into Afghanistan...the insurgents have moved from house to house fights out into the fields and mountains. They learned against the Russians, in another 10 year war (the Russians gave up and quit) to hide in the hills and snipe. A recent video showed a platoon tied down and hiding from a single sniper that was shooting from beyond the maximum capability of the M4's. In a situation like that, all the troops can do is call in for back up! Which resulted in a missile strike that killed helpless civilians. Would a few 7.62's have helped in that situation..in my opinion - yes! Oh, well.
The good news seems to be that the military is sending more 7.62's into the battle zone. And it appears that the upper brass has given in and admitted that different battle zones require different tools (Rifles). You can not win a war without good, well supplied soldiers. We have the best in the world! Let's all work together to keep them the best equipped force in the world.
The predator drones are a nice gimmick, 50 cal sniper rifles have their place, but nothing takes the place of the men on the ground, occupying territory and bringing peace. The Russians put over 100,000 troops in country. They got their butts kicked, and reportedly lost more men than the 50,000+ we lost in Viet Nam. We have lost 5,000 in Afghanistan in 10 years...we lost more in some months in Viet Nam...and for what? The politicians changed their mind and decided to quit after spilling all our precious blood. It may happen again!
I keep asking this question...we are invading the Afghan's homeland, have driven out one government and set up our own, do we wonder why they hate us? What will we have to do to convince their leaders, mullahs and imams, to give up and surrender? Will a "Magic Bullet" do that? Will bigger bullets do that? What are we going to have to do? Nuke every mountain?
They have been fighting invaders for about 5,000 years, are we willing to exterminate them to the last soldier...to win? We see that if we kill one soldier...two take his place tomorrow...coming from Pakistan and what-is-it -stans all around the country...and even traitors have come from the US to fight against our troops. I feel like that reporter the other day, yelling to Obama..."Can we win?" America is still waiting for him to answer. Are you?
No, I am not running for office, and am down off my soap-box for now!