SIGforum
SBR/PDW ammo

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March 25, 2018, 01:22 AM
RNshooter
SBR/PDW ammo
Does anyone make ammo in 5.56 or 300 Blackout specifically designed to burn completely in a short barrel? I'm interested in supersonic, self defense ammo.

Anyone?

Bruce





"The designer of the gun had clearly not been instructed to beat about the bush. 'Make it evil,' he'd been told. 'Make it totally clear that this gun has a right end and a wrong end. Make it totally clear to anyone standing at the wrong end that things are going badly for them. If that means sticking all sort of spikes and prongs and blackened bits all over it then so be it. This is not a gun for hanging over the fireplace or sticking in the umbrella stand, it is a gun for going out and making people miserable with." -Douglas Adams

“It is just as difficult and dangerous to try to free a people that wants to remain servile as it is to try to enslave a people that wants to remain free."
-Niccolo Machiavelli

The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all. -Mencken
March 25, 2018, 05:27 PM
sigfreund
I don’t recall ever seeing ammunition whose factory specifications included burning all the powder in a specific barrel length, but Hornady has a supersonic 5.56mm NATO load that’s advertised as being optimized for short barrels. It’s claimed that it won’t foul suppressors, so that also suggests it does burn more of the powder in short barrels than more common loads.

https://www.hornady.com/ammuni...lock-hd-sbr-black#!/

In general I would expect 300 Blackout loads to burn their powder more efficiently and completely than the 5.56, but I’m just guessing about that.



► 6.4/93.6

“Wise men talk because they have something to say; fools, because they have to say something.”
— Plato
March 26, 2018, 12:18 PM
RNshooter
That's what I ordered, in 110gr 300 Blackout. No mention of barrel length tested but it says optimized for rifle, pistol, and suppressor use. It looks like a good choice for SD ammo.

Bruce





"The designer of the gun had clearly not been instructed to beat about the bush. 'Make it evil,' he'd been told. 'Make it totally clear that this gun has a right end and a wrong end. Make it totally clear to anyone standing at the wrong end that things are going badly for them. If that means sticking all sort of spikes and prongs and blackened bits all over it then so be it. This is not a gun for hanging over the fireplace or sticking in the umbrella stand, it is a gun for going out and making people miserable with." -Douglas Adams

“It is just as difficult and dangerous to try to free a people that wants to remain servile as it is to try to enslave a people that wants to remain free."
-Niccolo Machiavelli

The trouble with fighting for human freedom is that one spends most of one's time defending scoundrels. For it is against scoundrels that oppressive laws are first aimed, and oppression must be stopped at the beginning if it is to be stopped at all. -Mencken