![]() ![]() Our top selling 223/5.56 SUBSONIC round (priced per 100 rounds). ![]() Once-fired LC brass, Hornady 55 grain SP (soft point) 1030 fps. This ammo is loaded to SUBSONIC speeds for barrels from 10″ to about 22″ barrels. This subsonic ammo is not designed for barrels longer than 24″. This ammo will NOT cycle an AR-15!! This ammo is designed for 1:10″ twist or faster (1:9″, 1:8″. If you have a 1:12″ twist, you will need to check bullet stability first before shooting through a suppressor. The 55 grain SP bullet is marginally stable in a 1:12″ twist barrel at subsonic speeds, and should not be shot in any slower twist rate. It will shoot fine if you manually cycle the bolt. If you are zero’d at 100 yards with normal full power supersonic 223 or 5.56 ammo, your point of impact (POI) with the subs will be about 9″-12″ low at 100 yards. ![]() Why use a 55 grain SP (soft point) flat base, instead of a BTHP, VLD, polymer tip or match bullet? When shooting at subsonic speeds, bullet stability becomes a huge factor for the bullet to properly stabilize and for it to shoot well. Bullet length is a major factor in how stable it is out of the muzzle. In a given twist rate (like a 1:10″ or 1:9″ barrel twist) and slow subsonic speeds, a shorter, flat base bullet is more stable than a longer BTHP or VLD match bullet of the same weight. The 55 grain SP flat base is a much shorter bullet than a similar weight 55 V-max or BTHP design. This allows the 55 grain SP flat base to be more stable and have the potential to be more accurate at subsonic speeds than a BTHP design. 1) Delete ev nova license.lcs and pref file (Documents and Settings\user\application data\ 2) change the date to may 8th. ![]()
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