![]() For this reason people shooting with a silencer prefer subsonic loads, even when shooting a rifle. I use magnum primers as I read somewhere that they help with reliable ignition with so little powder in the case. As a side note, if a silencer is attached to the gun it will only suppress the muzzle-blast noise. 223 and 50-55gr bullets I would start at 4gr N310 and reduce the load until you're subsonic / happy with velocity. 224 68gr Hornady BTHP Match bullet including underlying parameters such as bullet length, cartridge length and case capacity. Subsonic loads do not have this second component of noise. Trying to get something a little quieter for my 223/5.56 SBR. The noise that shooting makes has two components, the noise of the hot gases escaping the muzzle and sometimes flashing as they hit the atmosphere (muzzle blast), and in the case of supersonic loads the crack of the sonic boom as the bullet breaks the sound barrier. Anyone have information on subsonic loads for 223/5.56 using H4895 or other powders with 65gr/69gr/75gr bullets for use suppressed I know H4895 has been the Military's main powder since WWII and heard that it works well with under charged loads and less than 1,000fps. Most rifle loadings are all supersonic, so subsonic loads are specially down-loaded to stay below the speed of sound. In 9mm, most loading data are supersonic. 22 conversion using a 1-9 twist barrel and 60gr SSS ammo from Aguila. Basic Load Data Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading. The very best subsonic 223 load for any of these rifles is a. Below you’ll find some basic data for each cartridge to help get you started. All data in this caliber is subsonic but is not normally tagged with the name subsonic. Reloading data is available as low as 99 per cartridge or as a subscription for 19.99. Not all "subsonic" loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. With full power loads, my son's AR and his suppressor sound about like a 22 LR rifle being shot.Subsonic loads refer to those whose velocity is less than the speed of sound. Will say that this is why the 300 Whisper/Blackout is so popular, you can stay subsonic and get the AR to cycle. I suggest you go to and to see what others may have found to use to make their ARs cycle with a subsonic load. Anyone have information on subsonic loads for 223/5. If you want to try different loads with different powders for (poop)s and grins. But for quite shooting at close range it was. This combination gave consistant results in speed and grouping out to 50 yards but the bullet path fell off quickly after that. It will withstand exceptionally high velocities and can be loaded in all 30. It uses a round nose 100 grain bullet and is expensive. 223 Remington Subsonic Loads (Hodgdon data) reloading data with 3 loads. After a lot of test rounds the final recipe ended up being. This is a new addition to Sierras 30 caliber Varminter rifle bullet offerings. ![]() There is a company selling 223 ammo that is subsonic and will cycle an AR. Very quiet using Trail Boss or Tight Group but it didn't even budge the bolt.This was with 55 grain bullets. I did a few subsonic loads for my son's AR with a AAC SPR/M4 suppressor. For todays video we do a little casting, powder coating, reloading, and finally shooting for some 160 gr heavy subsonic ammo. I would suggest that as you work up loads, do them without the suppressor to make sure the bullets are stabilized, if you don't you run the risk of a baffle strike which could ruin the suppressor. ![]() 9mm, a max load of the same with a much lighter bullet in a much larger case does not make sense to me. You would load 3 grains of Titegroup under a 147gr. You will need to use the heaviest bullet you can find that will still stabilize in your barrel at about 1000 fps. The loads in the Lyman manual begin at 1700fps btw. ![]() If you are shooting an AR 15 and want a subsonic load that will cycle the action, it is going to take a lot of work. ![]()
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