![]() TKO = Bullet weight (pounds) x Impact velocity (fps) x Bullet diameter (inches) I am obviously not a math wizard, nor have I done the math, but I have for many years been intrigued with ballistics, specifically the Taylor’s Knock Out (TKO), a formula based on the experience of the renowned African hunter John Pondoro Taylor, is one close to the heart of many amateur and (supposedly) professional ballisticians and hunters alike. 223 or 7.62x39mm would mean adding new powder and primers to my shopping list. Titegroup is good for subsonic loads using very similar charges as 9x19mm rounds, and IMR4227 lets me mimic the 110gr Barnes TAC-TX load. ![]() I stockpile Titegroup and IMR4227, along with small pistol primers, and use them to load all pistol calibers as well as the. Touching back on the pistol-powder point above, this has another logistical advantage for the handloader: you can share powder and primers with handgun rounds. 308" slugs that are ubiquitous and have tons of quality designs on the market, and you can load velocities from 800-2400fps and weights from 80-240 grains and have crazy amounts of fun playing with loads. 300 Blackout is also a very fun cartridge if you reload, because it has such a wide range of potential just like the. If you want to SBR, you don't lose as much performance as you do with. ![]() 300 Blackout is often loaded using hot pistol powder, getting better performance from short barrels than most rifle rounds. You can use the same MPBR zero on red dots for both 7.62x39mm and. 30-30 Winchester (not across the board, but depending on the loads you're comparing), while having improved terminal ballistics due to better modern projectile designs. With supersonic rounds, it has similar external ballistics to the 7.62x39mm or. 45 Super rounds, but with improved penetration and better terminal ballistics at 100+ yards due to the advantages of rifle projectile designs. With subsonic rounds, it has similar external ballistics to hot. 223 parts/guns and are looking to convert. 300 Blackout a logistical advantage IF you already have. Other calibers including 7.62x39mm require more parts to be swapped, which gives the. 223 rifles same recoil system, same mags, same bolt, etc. Jones in the early 90s for the purpose of reliable and effective suppression in AR-pattern rifles with a minimum of parts differences. 300 Whisper through a Blackout chamber as functionally it's the same round at a lower pressure. 300 Whisper, which is owned by SSK Industries. It is a fun and capable cartridge for people that enjoy ballistics. It is not the next big cartridge that's going to rule urban battlefields. Some of the haters treat it like a meme, some of the fans also treat it like a meme. People who think the Blackout is a "new fad" need to read up. If you reload, I think the argument becomes even muddier.Ĭorrect answer - own all three, but start with a short barreled 300 blackout. If you are Big Army, you can spend that green on the "green" ammo, but for everyone else you have to do what's right for you. At the same time, there's a solid argument for 16" 300 blackout vs 16" 5.56, but a lot of that argument has been met with m855a1 and m80a1. ![]() Suppressed subsonic is just the cherry on top. Lastly, looking at current prices of the previously inexpensive and imported AKs, like a Norinco, I believe any price advantage of the AK platform is non-existent at best today. 25 years ago, there were only a few names producing ARs and today there are countless, so AR inventories are flush and prices have collapsed. ![]() If you compare apples to apples at SGAmmo, steel case AK is at parity with steel case AR (223/5.56) ammo. 45 GAP?įirst, the biggest draw to the AK and its cartridge was cheap ammo, followed by abundant and cheap firearms and parts availability. 300 blackout, has the same grain weight options, and is the same caliber, why wouldn't people just build a AR with a 7.62x39 upper rather than a. When 7.62x39 ammo costs only about 40% of. 300 blackout subsonic ammo turned up a $26 box of ammo, while a quick search of 7.62x39 subsonic ammo (same grain weight as. 300 blackout is what people said about the 7.62x39. Now 20 years ago, I read a TON of comparisons of 5.56 vs 7.62x39. Those were by far the two most common answers. With supersonic rounds, its more of a stopper within 300 yards than 5.56. You can use subsonic rounds with a silencer and its very quiet, yet still effective within 60 yards.Ģ. I was doing some research on why its so popular, and it seems people list the following:ġ. So I have been away from all the AR stuff for about 15 years. ![]()
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