Re: .300 Blackout
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rsilvers</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 346ci</div><div class="ubbcode-body">How come that didn't fly over at the 68 or G Forums? I'm not going to get into the load of crap you can spew but simple math will show that is not a 300yd gun, you trying to sell it as that is a joke. A .223 case can only hold so much. Leave it as it is, a good CQB choice. I'd love to see it being used as MP5's are, if you can get one to run 100%.</div></div>
Here is your problem - you assume that more powder means proportionately more power, but you are failing to consider how much more efficient 300 BLK is than 5.56mm or 6.8. 6.8, for example, uses 45% more powder and has about 1/2 that more power. The extra powder is just wasted and becomes flash, blast, heat, and noise.
The US Military rates the Max Effective Range of the M4 as 500 meters for a point target.
If the max effective range of the M4 with M855 at 2900 fps is 500 meters, that has 100 inches of drop, 41 inches drift, and 291 ft-lbs of energy at that distance:
A 16 inch 300 AAC BLACKOUT 125 grain at 2220 fps has:
100 inches drop at 440 meters
41 inches drift at 484 meters
291 ft-lbs of energy at 700 meters.
While the 300 AAC Blackout has far more energy, the military goes by hit probability. If we consider that the drift and drop range is correlated with hit probability, and discount the energy advantage of 300 BLK, we get 462 meters for equal hit probability.
Using M4 military standards, the max effective range of 300 AAC Blackout from a 16 inch barrel is 460 meters.
From a 9 inch barrel (2050 fps):
100 inches drop at 410 meters
41 inches drift at 470 meters
291 ft-lbs of energy at 625 meters, so 440 meter max effective range for a 9 inch.
300 BLK from a 9 inch barrel has the same energy at the muzzle as a 14.5 inch barrel M4, and about 5% more energy at 440 meters.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 346ci</div><div class="ubbcode-body">Edit: Did Barnes ever confirm those 300yd tests? I know they would not a while back, that says a lot from a company owned by freedom group, the same guys who own aac. </div></div>
Not sure why they should confirm their own report. They are the ones who did the test. If you cared about your own reputation you would not call out someone on something certain to be true. </div></div>
No doubt it is effective at burning powder, however, the numbers just don't add up as you are still trying to lob a big ass bullet out of a tiny case. What you have is a weapon good for 200yds with any setup, anything after that and it needs to be paper. I know the BO is your baby and all but its time to step into the real world as other professionals have said what it is. You are going to tell them they are FOS?
