Suppressed POI shift

[bellavite1]

I just shot my 308 Remington 700 suppressed for the first time and i see a pretty big shift of POI.
Not my best shooting, granted, but consistent enough to see a pattern: with the can attached, at 100 yds, I am seeing about 6 MOA up and about 1 MOA left.
Sounds like a lot, especially from a 700 SPS Tactical 20" heavy-ish barrel.
Your thoughts?

[Joe_K]

Direct thread can? Or does it use a separate mount?

[bellavite1]

Griffin taper mount minimalist flash hider

[Joe_K]

Is the POI shift repeatable?

[bellavite1]

It is: I alternated shots between suppressed and unsuppressed and they grouped just fine.

I guess I can just zero for suppressed and call it a day, but it sure sounds like a lot, and I don't see such a large shift with my 20" AR (govt barrel, same kind of muzzle device).

I must wonder whether this is somewhat in the realm of possibility or if something is off in the way the barrel was threaded.

[Joe_K]

What?s the barrel profile? And is the can new?

[bellavite1]

The can is new, got out of Jail 7/12/22.
Barrel profile is OEM 700 SPS tactical, not quite a bull barrel, but definitely heavy.

[Linkless]

That seems like a lot to me. I have a Gemtech One and use quick detach and direct thread depending on the rifle I'm shooting. I haven't seen any noticable change in POI.

[Joe_K]

Factory threaded? **Nevermind** Saw your other thread.

[Skully]

Whisper pickles can actually increase velocity 5 fps all the way to 30 fsp (there is a guy that writes for TFB that did a test on it Suppressors affecting velocity -The Firearm Blog ), all of that plays with POI shift.

6 MOA seems a little excessive at 100 yards though but I am no expert, depends on the Whisper Pickle design etc. you can always reach out to the mfg of the can and ask what they think.

I shoot 99.9% of the time with a can on so always zero using it, only take it off for function test without the whisper pickle.