Suppressors moi shift when using a suppressor

[jsmythe]

I am looking to have my remington 700 .308 20" heavy barrel fitted for a QD mounted suppressor, probably either Yankee Hill .30 cal Phantom or the SWR Specwar 7.62. I have heard I can expect a POI change when using the suppressor and when firing without the suppressor when using it on an AR15. I understand that if my rifle is zeroed with the suppressor not attached that the rifle will hit low when the suppressor is attached due to the extra weight causing a slight droop in the barrel, at least where the AR15 lighter barrel is concerned. My question is: Does anyone have any first hand knowledge of what the suppressor will do to the POI of a precision 20" .308 heavy barrel?

 

[Nate O.]

It will still change the POI...just note the shift with and without the can

 

[garandman]

Its called POI (point of impact) shift.

Its actually caused by the suppressor changing the barrels harmonics (aka "whip")

My 18" DPMS LR 308 has about a 1" right and 4"-5" down POI shift at 200 yards with the can on.

Your POI shift might be just about anything, but should be consistently the same thing.

 

[mtrmn]

My YHM QD 7.62 Titanium has a different POI shift on every AR I put it on. I switch it out between about 6 or 7 AR types and it shifts anywhere between Zero and 1.5" at 100 yds. The POI is repeatable on every weapon, so all I do is write down the shift for each one and I'm pretty much GTG.