Our subsonic .308 WIN/7.62x51mm round, loaded with the 190 gr Hornady Sub-X projectile, is designed for precision and stealth. Whether you're using a suppressor or shooting without one, this round offers outstanding performance for those seeking quiet, subsonic solutions. The Hornady Sub-X bullet is engineered to expand reliably at lower velocities, ensuring effective terminal ballistics even at subsonic speeds.
Key Specifications:
Caliber: .308 WIN/7.62x51mm
Bullet Weight: 190 gr
Ammunition Type: Subsonic
Recommended Barrel: 1:10 twist or faster, 18" length
Usage Recommendations:
To maintain stability and prevent tumbling, this round is optimized for rifles with a 1:10 twist or faster. For the best results, we recommend confirming stability before using with a suppressor. Always test fire without the suppressor first to ensure the projectile is stabilized and isn't tumbling at your desired distance. Be sure to check with your suppressor manufacturer to confirm compatibility with your specific setup. Our subsonic .308 ammunition is specifically tested and optimized for subsonic velocities using a bolt-action rifle. Please note that this round may not reliably cycle in most semi-automatic firearms without significant tuning or potential modifications to the firearm.
Designed for optimal performance in both suppressed and unsuppressed platforms, this subsonic round provides reliable, quiet power without sacrificing accuracy.
10 Reviews Hide Reviews Show Reviews
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Great hunting ammo
3/4 MOA at 100 yards fired from Remington model 700 with DeadAir/Ruger RDX30TI!
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308 Win 190 gr Sub X Subsonic
The 190 gr Sub X is the best 308 ammo I have ran through my rifle. The sound is awesome. They are really consistent on performance. Just spicy enough. My range has increased tremendously since I started running the 190 gr Sub X from Phantom Defense
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Subsonic 308 190 grain
Shoot really well out of ruger american gen 2
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WOW
Impressed to say the least, will be ordering more these are a steal with my PTR Vent1
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190 grain subsonic phantom defense
These are absolutely the best rounds I've found for subsonic 308. I shot at 50 and then 75 yards. I shot 5 rounds at 75 yards and tore about a 40 caliber hole with 4 if them and the other was touching that hole. I'm hoping to get to buy 1,000 rounds of these soon. 5 stars all day long!
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308 190grain subs
Got the 190grain sub rounds for my 308. Took about a week to get them after ordering. They group writhing an Moa out of my mk endeavor 3 and are really quite!!
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308 sub x
Awesome ammo. Shooting through ruger American gen 2 paired with a trashpanda
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308 Subsonic
Shipping was extremely fast and product as described. So far no issues with ammo, just got to tune rifle to ammo.
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Great for training and groundhogs
Super accurate with my SIG Cross and Lahar L suppressor. Can't wait to get more when they're available.
