Suppressors Baffle Strike SDN6 - how can 223 bullet strike a 308 can?

[Smithcollector]

I just got an SDN-6 back from AAC after they repaired a second baffle strike. Each was from a different 223 / 556 - one a SCAR, one a LWRC. The suppressor is for a 7.62mm. How in the world am I getting baffle strikes with a 223? Both times I'm using factory ammunition with a 69 grain Sierrra bullet.

I've got a slight wiggle on both mounts but it doesn't seem like nearly enough to interrupt the bullet, especially one so undersized.

Any thoughts or suggestions?

Unrelated to my question, but AAC was great both times. They sent prepaid shipping, repaired the suppressor in around 2 weeks. They didn't have any comment as to why I'm getting stikes.

 

[TxWelder35]

Because the mounts suck

 

[2ndamendfan]

something is fucked up. Get a .223 one of these.

Bore Alignment Rods | SureFire Suppressor Alignment Tools | SureFire

SureFire Bore Rods are valuable tools that will ensure proper concentricity along the bullet flight path when firing suppressed on a new platform. The rod most closely represents the bullet flight path and will show any misalignment, if present.

www.surefire.com

 

[Huskydriver]

Yea either your mount is bad or your threads suck I'm guessing

 

[TxWelder35]

AAC mount design is know for those problems

 

[Caterpillardoc]

AAC mount design is know for those problems

Make sure you properly mount the suppressor on the adapter. It’s easy to screw it on crooked, thinking it’s mounted the correct way and have a strike.