When I shot the 9.5 grain loads in the KS-47, they would shoot fine, but would not eject the spent shellcasings, and would not chamber the next round of ammunition. Since I couldn’t find load data for 7.62x39mm 220 grain plated bullets, I decided to *start* with the same powder charge, only, but substituted 7.62x39mm cases, and large rifle primers in place of the magnum small rifle primers used for 300 blackout. Always cross-reference load data with manufacturer’s published data. Ultimate Reloader is not responsible for errors in load data on this website. When I started my quest to load 220 grain plated 30 caliber Spire Point bullets from Berry’s Manufacturing for 7.62x39mm For Review: 300 Blackout Loads with Berry’s 220 grain bullets: If you want to load heavy subsonic bullets for the 7.62x39mm, you may scratch your head looking for data. 7.62x39mm Sub-Sonic Loads: Thinking Outside the Box I also wanted to be able to shoot these loads in my N-PAP AK variant carbine-length rifle, but I knew that rifle would be inherently less picky, so I used the KS-47 for the primary load development activities. I really wanted something that would work great in my PSA KS-47 8.5″ AR hybrid pistol chambered for 7.62x39mm. The first thing I sorted out was what rifles I’d be loading these subsonic loads for. By accepting these terms, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this website.Ultimate Reloader, LLC and Making With Metal can not be held liable for property or personal damage due to viewers/readers of this website performing activities, procedures, techniques, or practices described in whole or part on this website.The load development techniques and subsequent load data is NOT deemed to be safe for you to try/use.Do not attempt any of the processes or procedures shown or described on this website.The content on this website (including videos, articles, ammunition reloading data, technical articles, gunsmithing and other information) is for demonstration purposes only.With high-quality cartridge cases and primers, Subsonic Ammunition offers the performance and accuracy shooters have come to expect from Hornady.Ultimate Reloader LLC / Making with Metal Disclaimer: (by reading this article and/or watching video content you accept these terms)
Unique powders optimized for subsonic use result in a low flash signature, ideal for either suppressed or unsuppressed performance. Hornady® Subsonic Ammunition doesn’t have the loud report of a supersonic round, and paired with a suppressor, it’s even quieter. The XTP® bullet in Subsonic Handgun has built a world-class reputation for accuracy and stopping power. Performance of 300 Blackout Subsonic meets or exceeds FBI Protocol terminal ballistic test requirements. Powders are selected for optimal performance and consistency from lot to lot. Long grooves in its gilding metal jacket combine with the bullet’s flat profile and the patented Flex Tip® insert within its hollowpoint cavity to help it expand reliably at low velocities. The Sub-X bullet used in Subsonic Rifle features a lead core. Subsonic Handgun utilizes tried-and-true XTP® bullets that expand reliably at subsonic velocities.
Hornady® Subsonic Ammunition - designed for accuracy and performance below the speed of sound - now comes in both rifle and handgun loads.
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