Its quite simple to handload 223 subsonic ammo -using 55 grain bullets and pistol powder-but you would probably be better served with a 22 lr. Obviously this will reduce POI but for arguments sake how worthwhile/feasible is it? My question is could one(me), "modify" a bullet(calculating speed of sound vs relevent ballistic info) to make it sub-sonic? I mean like effectively I am keeping the same bullet, primer, case(padding with cotton on primer side according to ) and am just reducing the amount of charge. This subsonic ammo is not designed for barrels longer than 24. This ammo is loaded to SUBSONIC speeds for barrels from 10 to about 22 barrels. Once-fired LC brass, Hornady 55 grain SP (soft point) 1030 fps. Now according to wiki, the speed of sound is 1130 fps, so roughly 1/3 the speed of the bullet in question. Our top selling 223/5.56 SUBSONIC round (priced per 100 rounds). Tis kind of a hand-loading question(sort of) but for arguments sake a 55g spitzer has a muzzle velocity of 3240fps. Beretta AR 70-90, Thermold, Orlite, Sig Arms black mags, and M16/AR15/M4 USGI. 223 rounds available(imported) but it did get me thinking. View Cart Rifle Ammo 22 Short Ammo 22 LR Ammo 22 Hornet Ammo 223 / 5.
Now after a quick google, there ARE sub-sonic. Fair enough, as as pretty much all rounds available(easily/locally) are supersonic anyway.
#Thermold subsonic 223 manual#
I'm initially going to use the suggestion from Hodgdon's manual which. 223 available in Ireland for full effect anyway. As I was loading up primer tubes tonight for my next run of 55 gr FMJBTs that my SCAR likes, I started thinking about reloading subsonic 223 ammo for my suppressor that I'm patiently waiting for (4 months pending thus far - Surefire 556-212). 223 is pointless as it makes no discernible difference in dB's, and no sub-sonic. This might be a bit long-winded cos am new to the sport so please forgive any stupidities.
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