![]() But using the above for testing because I figure if a 1-24, 16” stabilizes the bullet, then the 1-16 will do so as well. May be adding a 1:16 AR-556 18” Ruger for my daughter. (as of 3/22 I am still waiting on my suppressor but will go back and edit results as such, guessing July before I get it. ![]() I do not want to change springs unless it comes down to a requirement. USE AT YOUR OWN RISK, this goes without saying and I appreciate any challenges to data in this experimental area: 450 Bushmaster but it is a hunt and peck search still for this “young” caliber. When I look around different forums I see a smattering of people searching for heavy bullet data for the. I love large calibers and the heavy bullets that go along with them. I do not want to pay for some designer bullets aka Black Butterfly. I do a lot of night hog hunting throughout the year and would like to have a heavy and viable round that is subsonic. Many other shooters are much more serious with sub use than I am.Have a couple years pouring over this site and want to thank everyone for their contributions.Ībout the same time I was working up this post in Word I saw the post by Rklenke, good post bud, going to pick up some of that Shooter’s World Blackout if I can find any. In my use, subs are good for shits and grins while impressing your friends with your cool silencer. The sound comes from the point of travel nearest your position and drowns out any noises from the gun. ![]() When a supersonic bullet passes your position downrange, the sound is much like someone standing nearby and shooting a 22LR. Therefore the shooter's location is much harder to pinpoint because the crack drowns out any other noises the gun makes in most circumstances. The supersonic crack comes from the bullet, not the gun, and follows the bullet downrange. I'll keep the terminal performance of normal velocity ammo and put up with the sonic crack. There ARE bullets specially designed to perform at sub-velocity but are pretty costly. The only change was rifling marks on the jacket. Even with normally exploding varmint bullets, many of them could probably be re-used after shooting them into water. The high performance expanding hunting bullets will NOT be high performance at 1050fps. In addition the speed of sound varies with temp so running at 1100 which is the speed of sound at sea level and standard temp and pressure (59 deg F and 14.7 psi) may be supersonic at lower temps.Īfter much testing and tinkering, I decided I had no PRACTICAL use for subs in calibers meant for supersonic use. ![]() Subsonic loads need to be under 1100fps and in reality need to be in the 1050fps range due to acceleration of airflow over the curve of the bullet which will cause local sonic booms if you shoot at 1100fps. So to answer the original posters question: no I don't know of anyone (living) who is using 4064 for subsonic loading in either. Having 10gr of powder rattling around in a case with a capacity of 50grs makes it tough to keep things consistent. The other possibility is to make up cartridge cases with reduced capacity by either machining them from bar stock or filling existing cases with epoxy or lead or something and then making a smaller powder chamber. 308 you are better off with the 300 blackout as it gives you a choice of powders that will allow you to come up with something accurate instead of something that just shoots. You'll probably have much better accuracy too. 22LR as its much simpler than trying to get a 50gr bullet out of that long barrel subsonic. You have way too much case capacity and you will need a powder that fills the case at least 50% in order to avoid some destructive booms and also to help improve consistent ignition. 223 loads you don't just pick a powder and decide to load subsonic with it.
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