12/4/2023 0 Comments 223 subsonic with clays powder![]() For this reason people shooting with a silencer prefer subsonic loads, even when shooting a rifle. 300 Blackout powders is having any unnecessary weight to your rifle. This powder is known to be one of the best powders available for subsonic. As a side note, if a silencer is attached to the gun it will only suppress the muzzle-blast noise. From Hodgdon Powder Company, the CFE BLK Smokeless Rifle Powder was specifically formulated for. Subsonic loads do not have this second component of noise. 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. Most rifle loadings are all supersonic, so subsonic loads are specially down-loaded to stay below the speed of sound. Subsonic loads refer to those whose velocity is less than the speed of sound. In 9mm, most loading data are supersonic. All data in this caliber is subsonic but is not normally tagged with the name subsonic. Not all "subsonic" loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. (3.1 grains for 1,064 fps at 4,000 CUP) Here is the question. ![]() I am not in any way suggesting you load a bunch of bullets backwards-I just did this for shits and grins.ĪLWAYS do thorough testing of subsonic loads WITHOUT the suppressor until you are sure the bullets are stable leaving the barrel.Subsonic loads refer to those whose velocity is less than the speed of sound. 205 Gender:Male Posted Ap(edited) So i was looking for some data on Hodgdon website for the 223 the other day and noticed that they publish a subsonic load with titegroup. The backwards bullets cut a very nice wadcutter-type hole in the targets and would surely apply more shock to a varmint than a conventional FMJ load. They had the same point of impact and only slightly larger group as the same loads with the bullets loaded in conventional manner. 223 and 50-55gr bullets I would start at 4gr N310 and reduce the load until you're subsonic / happy with. I have safely tested up to 6gr N310, so no safety concerns in the unlikely event that I double charge a case. ![]() I use 3gr N310 with an 83gr cast bullet (about 980fps) in my 6x45 (6mm-223). With great powder comes great responsibility select our Safety to brush up on the dos and donts of reloading, starting with the basic reloading precautions created by. 223 to matching shot type and size to reloading data. I will add here that the backward FMJBTs appeared very stable at 100 yds when I loaded them with a normal full powder charge. Vihtavuori N310 is a great powder for this. Select the Reloading for Beginners to learn the basics, from the effect of crimp depth in shotshells to reloading the. The flat base bullets would not feed in my AR loaded backward, but the boattails did fine. Again, these bullets were loaded BACKWARDS and crimped into the cannelure. A few of them went supersonic and the supersonic bullets all were stable-even at 100 yds. (Don't try this at home.) They were stable leaving the barrel, but at 50 yards were beginning to keyhole, and at 100 yds 90% keyholed the target. I even tried seating the FMJBTs backwards. I also shot some 55gr FMJBTs with the same results and same load. They are plenty stable leaving the barrel, but the farther they fly the less stable they become. Use of this data in firearms with insufficient barrel twist rates may result in poor accuracy, key-holing, and internal strikes that could cause damage to muzzle devices such as brakes or suppressors. This was 55gr soft nose flat base, 4.4 gr Trailboss, CCI #41 mil primers, mixed brass. This data is intended for subsonic use in firearms with barrel twist rates appropriate to stabilize the bullets listed. ![]() They weren't keyholing yet, but on the verge. Out of 10 rds, 3 hit nose up, 4 nose down, 2 nose right and 1 nose left. Bullets very stable at 50 yds, but at 100 yd target, you could tell from the holes they were beginning to wobble a bit. Shot out of a 16" bbl 1/9 twist AR carbine. I did shoot some 55 grain soft nose yesterday though. I have not tried any bullets heavier than 60 grain yet in my subsonic experiments.
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