Suppressors Removing/Reattaching Flash Hider causes POI shift??

[Oleshep]

The first time I took off my Flash Hider (A2 style with the bottom port closed) and attached my Can I was suprised by a 3-4min POI change? I was expecting a POI shift but this was more than I was thinking. Upon reattaching the FH I was still off my previous zero. The gun was still shooting a great group but in a differnt spot. So it seems to be the FH more than the can causing the POI shift. I was not expecting this but I guess the closed bottom port design of the FH is causing this.

Has anyone else had this experience? I am wondering if a standard A1 FH would have the same effect... I may just run a thread protector when I don't have the can on, but I would like to find a FH that would work without causing POI shifts.

 

[Oleshep]

Anyone out there have a similar experience?? Anyone? Anyone? Bueler? Bueler???

 

[islandermyk]

I've heard a story about threading on a can really tight (I'm guessing more than snug tight) on the rifle could cause POI shifts by more than an inch or two and some loose change, and then I heard the shooter uses loc-tite and gets it threaded on the rifle not even snug tight and claims to get less than an inch shift in POI.

really good question if torquing a barrel for any reason would cause some serious shifts.... but I would think it would... but can't say I've experienced anything like that.

 

[Oleshep]

Well I am not torqueing it on there too harrd but I guess that could be the cause.. Thanks for the heads up..

 

[rrflyer]

Your changing barrel harmonics..... It might change the POI

 

[Oleshep]

Your changing barrel harmonics..... It might change the POI

Yeah I realize that but is it fantasy to think I might be able to eliminate or minimize the POI shift?