#Subsonic rounds vs supersonic full size#

Taking a full size AR rifle and making it have the effectiveness of a pistol seems ludicrous and rightfully so. Because we need to have a bullet moving under the speed of sound to make it subsonic, we need the bullet to perform to our desired result within that limit. 300 BLK in subsonic form as a specialty pistol load is that it has all the same limitations as pistol cartridges in that available bullet mass restricts necessary bullet speed. The main concern with subsonic loads is that they share a single trait: their limits. 45ACP than that of rifles and for good reason, but more on that amazing new round later. 300 BLK bullet design, like Hornady’s just-released SUB-X 190gr load, share more with pistol rounds like. 45 benefits from more frontal area, a myriad of bullet designs, proven, belt-carry pistol-sized weapon designs, and over one hundred years and billions of man hours of use.

Looking at the cartridge as a subsonic offering only, we are immediately confronted with some problems that make it, at least at close range, less effective than a. 45ACP than it is to the supersonic form of the same cartridge. 300 BLK revealed that I could launch them at speeds of 950fps from a 7.5” barrel, making the two close in terms of speed. 45 ACP can launch a 230gr bullet at speeds of about 800-950fps from a 5” 1911 pistol. 300 BLK looks like in a subsonic sense, we need to look not at rifle cartridges, but instead at pistol rounds.

30 that uses shotgun and pistol powder at handgun velocities counts as a rifle in the sense of the word. It is troublesome to many staunch supporters of legacy calibers that a tiny. Indeed, the same powders I used for my supersonic loads are also used in my subsonic loads by simply reducing the charge. 300 BLK is a cartridge that can happily cross many performance barriers with the use of a single type of shotgun powder. 300 BLK, is that it has a hard time fitting in with how they see rifles. What irks people that I know, especially those with a visceral hatred of the. In what was likely a first, the American public, usually concerned with long-range accuracy, decided with their wallets that a short-range, suppressor-friendly round was to stay and, as a result, serious design challenges were addressed in terms of bullet design. 300 BLK, despite being ballistically inferior at long range, into the spotlight and drove the others into abject obsolescence. The realities of the modern battlefield combined with the intense interest of the American public is what pushed the. Their development was at a time when the idea was to improve upon the 5.56mm cartridge at distance. This is a critical point in respect to the 6.5-6.8 cartridges. Instead of an advantage, it would be a deliberate handicap and a dangerous one at that. 270 in a 6.8 SPC, they could never equal the weight, and thus effectiveness, of. In order for a subsonic cartridge to be effective, it must have a bullet that carries enough mass under the speed of sound to do serious damage. 300 BLK was readily adaptable to heavy bullets like the 220ge SMK, which at the time were available off the shelf where no comparable bullet was ready for 6.8 SPC or 6.5 Grendel. 300 BLK truly shines is in its almost elastic versatility. Any supersonic cartridge could be suppressed, but not every supersonic cartridge could be easily made into an effective subsonic one.

300 BLK’s popularity came at a time when the suppressor market was exploding. Why would this matter? The answer to this is twofold. 300 BLK due to the fact that the smaller bore diameters didn’t lend themselves to loads at subsonic velocities. There were never any good subsonic loads available for 6.8 SPC or 6.5 Grendel that could match those in the. The cartridge experienced commercial failure and is rarely used by anyone today except a few diehards as a result of the perfect storm of the 2009-2016 suppressor boom. The Achilles’ Heel of the 6.8 SPC, for example, was specialty parts, magazines, and a shortage of good bullet options. The reason for this is that, unlike rounds like 6.8 SPC, it offers the shooter a cartridge they actually want that is easily compatible with existing weapon platforms and can use off-the-shelf ammunition components with little to no issue. It has successfully outpaced the sales and popularity of other cartridges in the AR-15 world, such as 6.8 SPC, 6.5 Grendel, and many others, and done so with shocking gusto. 300 BLK has taken the shooting world by storm. We are, of course, not talking about ballistic trajectory, but rather the upward sales and popularity curve and the resulting technological gains in terms of subsonic bullet design. 300 Blackout is better than that of other, faster rounds. – -()- Here we will discuss how the trajectory of the. 300 BLK Pistol used for testing handloads

Subsonic rounds vs supersonic