300 Blackout - Ultimate Subsonic Ammo Test!!!

In this video we test out NINE different SUBSONIC 300 Blackout loadings. I have been putting together all of the subsonic 300 Blackout loadings I could find. HUGE discounts on My Hearing Protection: GS extreme 2.0 - TRACKR BLU - TRACKR electronic - Deals and Discounts here! Please Subscribe to the channel HERE: Add me on facebook: Add me on Instagram: Truly appreciate you watching the videos!!! New Merch available - Heavy Metal here: Support us on Patreon . . . . . . 300 blackout,300 blk,300 aac blackout,remington 300 blackout,hornady 300 blackout subsonic review,hornady 300 blackout 190gr sub x review,hornady sub,hornady subx 300