Thread: Subsonic 7.62x39

I know a few people who have. Most are using cast bullets with or without gas checks. Most use trail boss as powder. It is cheap reloading and pretty straight forward. There were a few issues around tumbling bullets in one rifle but his load was "a bit hot" for the cast bullets and some of the hotter ones simply melted lead through the bore.....

Most of the issue around dropping velocity to 1000fps or slower is energy retention. To increase energy most use heavier projectiles such as 180gr or 200gr.

All the best.