Barrel heat causes POI to walk

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  • photoracer

    Competition Shooter
    Oct 22, 2010
    3,318
    West Virginia
    Anybody try a harmonics dampener? Like thy he ones the ast Simms makes?

    They work for me at least. I used it mostly in rimfire. I build a Remington 597 with help from Scott Volquartsen initially for Ruger Rimfire. But the dang thing was too accurate and not 100% reliable for speed shooting. Volquartsen carbon fiber wrapped barrel, Jard trigger group w/1.5# trigger, Revolution Tundra stock and BSA Sweet 22 scope to which I added the Simms Barrel De-resonator. With CCI SV it shot .5 MOA. Switched to free standing rimfire metallic silhouette and won 3 club titles in a 5 year span.
    One thing I noted while I was a guru on Rimfire Central.com is that that little rubber device was really good at improving the groups of cheap ammo. A couple of members did tests and the shrinking group size was very evident. Also used the rifle in Winchester NRA Qualification where I shot Distinguished Expert in Benchrest at my first attempt without any lower qualifications. Out of the 11 qualifying targets the last 5 were all perfect 200 point targets.
    Have not tried it on any of my centerfire bolt guns because I built the rifles and have never competed with them but I will if I ever get around to it.
    YRMV
     

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