JD’s idea was to basically have a standard velocity sub-sonic round that could be lobbed accurately without the disturbance of the supersonic to subsonic bullet destabilization. Bullets tend to destabilize as they drop from supersonic to subsonic and accuracy degrades. The round really was originally designed to be subsonic, ideally carrying a massively heavy 240gr Sierra Match King bullets to maximize energy at subsonic velocities. In all, it was an interesting R&D idea that certainly expanded the capabilities of the TC Contender target pistol, but as an AR-15 round, it makes about as much sense to me now as it did then–which is to say, not much. There was some “tuning” to get everything to work reliably on the AR platform, but he was the first. The 300 Whisper subsonic rounds were designed to be fired suppressed, and the high velocity rounds were meant to be fired un-suppressed. Take a look at the original concept JD Jones came up with through his company SSK, and you will see that in fact he did create the first 300 Whisper functioning AR-15/M16 equipped with a 12-14” long suppressor, which no doubt provided enormous amounts of back pressure to cycle the round.
Theoretically, it’s great to have a hard hitting subsonic round that maintains very good accuracy with the 240gr Sierra Match King, but the sub-sonic 300 Blackout round we stuff into AR-15s will not actually cycle and function without a suppressor or funky pistol-length gas system. So yeah, I get the round and its background, and I’ve shot it extensively. It was something new to sell and they did just that in a big way. AAC did have outstanding marketing, and after begin purchased by Remington/Freedom Arms Group/DPMS, that marketing power increased exponentially. It’s really not my legal decision to make, but it does seem pretty odd that in most cases you can use the dies interchangeably. Were these two great ideas conceived separately and independently? JD Jones did create the round first, and the Blackout followed after that. 308 round in it, and it’s powered with about as much powder as I put pepper on my salad. 300 AAC Blackout? I am really really quite confused by the widespread infatuation with the cartridge, and I really don’t get it even after owning and shooting the round.įirst let me say I do get the idea of the cartridge, and in fact I used to shoot the original JD Jone’s SSK 300 Whisper that AAC copied as the 300 Blackout–well, that they allegedly copied. Why was that funny, or in this case, why is everyone so nuts over.
Designed specifically to fit, feed, and function in a variety of firearms including gas system guns.Okay, so I feel like the guy in the room who doesn’t get the joke.Bullets feature a cannelure for a positive case crimp for use in semi-autos.Loaded with unique powders optimized for subsonic use, the low flash signature is ideal for both suppressed and unsuppressed performance.Designed to expand at velocities down to 900 fps.Impact velocities of 960 to 1,020 fps into ballistic gelatin, providing 16-18” penetration and 90%+ weight retention.Performance of the 300 Blackout Subsonic load meets or exceeds FBI Protocol terminal ballistic test requirements. Long grooves in its gilding metal jacket combine with the bullet’s flat profile and the patented Flex Tip insert within its hollow-point cavity to help it expand reliably at low velocities. The 190 grain Sub-X (Subsonic – eXpanding) bullet features a lead core. Hornady 300 Blackout Subsonic Ammunition is designed for accuracy and performance below the speed of sound.
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