![]() ![]() LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED. This data is intended for subsonic use in firearms with barrel twist. Subsonic Handgun utilizes tried-and-true XTP bullets that expand reliably at subsonic velocities. tell everyone Hornady Subsonic Ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. Effective range for hunting is about 100-150 yards.Ĭlick here to download Sierra Bullet’s 300 AAC Blackout Load Data for the 5th Edition Manual 300 Blackout 125 GR NOS BT Hodgdon Trail Boss. 300 Blackout 190 gr Sub-X Subsonic Item 80877 20/Box Shhh. It provides similar effectiveness to the 7.62×39 or the slightly more powerful 30-30 cartridges except works in the more up-to-date AR15 platform. 30 caliber bullets for medium-sized game. Notice, there is no recommended data for a subsonic 150gr load(not sure if that is your intent.) on this Sierra chart. The 300 AAC Blackout is a similar concept to previous wildcats, such as the 30-221 and 300 Fireball, as well as the proprietary 300 Whisper®, except that 300 BLK was the first to be a SAAMI approved cartridge and any company is free to make firearms or ammunition.ģ00 AAC Blackout is also finding use with hunters, who may not have been able to legally hunt with. 300 Blackout W/ CFE BLK Load Data Question Thread starter ACMAN Start date The 1 community for Gun Owners of the Northeast. 223 cases – ensuring brass supply even in the event of a shortage of factory brass. Not only does this allow for compatibility with existing magazines and bolts, but it allows reloaders to form their own brass from cut-down 5.56mm or. Data from a POF 10.5' barrel, 1:7' twist. The cartridge shares case-head dimensions and body taper with the. The cartridge simply cannot push them fast enough to ensure expansion. It has since become popular for a wide range of uses including hunting and home defense. In supersonic loads, 150-grain bullets are on the heavy side for the. ![]() 30 caliber bullets from the M4 platform with only a barrel change. and Remington in order to provide the military with a way to shoot. ![]() lower for safety.The 300 AAC Blackout (300 BLK, or 7.62x35mm) was created by Advanced Armament Corp. Most have reported it will not work for pistol systems either) H110 (subs and supers, however may not function some carbine systems with subs. Here are some loads that I have found from the internet. select rifle cartridge and then 300 AAC Blackout Lists loads using: IMR 4227 (subs and supers) W296 (subs and supers, however may not function some carbine systems with subs. Good luck, don't stray too far from factory standards. But it isnt just sub-sonics that can have problems. All that is missing is the 3 loads currently listed for LT-30. 300BLK loads listed in Western Powders current 'Reloading and Load Data Guide 6.0', including all the 57 loads. Especially using heavy bullets in such a small case.Īlso make sure that your upper is broken in and well lubed, the drag on new parts can prevent an AR from cycling with light loads causing you to think something is wrong. The loads listed in that datasheet include 8 of the 11 subsonic. Converting an AR-15 to fire 300 Blackout is as simple as swapping its barrel. So heavy a bullet conveys a subsonic muzzle velocity and correspondingly softer report. 300BLK is a cartridge that can run out of space while trying to use the same data with these two powders. 30 caliber bullet can be made especially long, and as the result may weigh up to 220 grains quadruple the weight of the typical 223 Rem round’s. You can usually use the same load weights, but there is a volume difference. Subsonic lead bullets work well with small charges of pistol powders, but they won't cycle your bolt.Īlso be aware that H-110 and WW296 are not the same powders, no matter what some reloader say. My favorite for sub plinkers is either Gallant 217gr or Eggleston 200gr I used A1680 as many said it was most reliable and clean for subs, which i think it is, but was told by some that LiL Gun was quieter. Many 16" barrel manufacturers won't guarantee bolt cycling without either pistol gas port location or a suppressor, with jacketed bullets. Blackout loads can be all over the place depending on exactly what you want. Lead bullets are fine/easier in firearms other that semi-automatics. If you crowed the "subsonic" velocity, your ammo may go supersonic with the changes in temperature and altitude. ![]() 300BLK AR15's with 16" barrels (w/ carbine gas ports), are at the edge of the pressure envelope, and are finicky about bolt cycling.Īdd to that, the use of lead bullets and you have an issue of developing enough pressure to get a consistent, complete burn of any powder capable of generating enough gas to cycle the bolt, and still being subsonic. Since all guns are different, any subsonic load that you find for a 190 to 208 grain bullet will be so close as to not matter since you will be reducing that load 1 - 3 grains anyway as you work a load for YOUR gun. ![]()
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