Accuracy issues with suppressor

[TxBowHntr]

I have an AR style 6.5 grendel with 12" barrel. I had it sighted in and getting 1" groups @100 with standard flash hider. I recently got a Dead Air Nomad LT suppressor and had the xeno flash hider installed. Now I am getting 2.5-3" groups both with the suppressor or just through the flash hider. This is using the exact same ammo. Any ideas what is causing this and/or what to do to remedy it? TIA

[BLACKFINTURKEY]

Dumb suggestion but try to clean it suppressors really make them dirty.

Try changing muzzle device back to what you had to see if any changes occur.

I had an experience where a muzzle device was causing some crazy groups as soon as I switched groups went back to normal. You could possibly be getting the slighted contact on the muzzle device that’s throwing the bullet off some.

[100%TtId]

Does that flash hider need to be clocked in relation to the suppressor?

[Mike D]

I would check for thread concentricity. I have a lot of different cans and the only one I’ve ever had cause groups to open up was getting light baffle strikes due to a poor threading job.

If anything most of not all of mine help group size rather than the opposite.


Sent from my iPhone using Tapatalk Pro

[Artos]

I'm almost thinking a light strike hitting the hider or got a booger on the muzzle during installation??

Shouldn't have opened up that much switching hiders??

[EastTexun]

I have an AR style 6.5 grendel with 12" barrel. I had it sighted in and getting 1" groups @100 with standard flash hider. I recently got a Dead Air Nomad LT suppressor and had the xeno flash hider installed. Now I am getting 2.5-3" groups both with the suppressor or just through the flash hider. This is using the exact same ammo. Any ideas what is causing this and/or what to do to remedy it? TIA

I have encountered the same issue with a Palmetto upper in 300BO. After a few light baffle strikes, lots of other tuning and things, I chalked it up to a less than stellar thread cut on that barrel.