It's a small sample size, but my experience with the elw profile and a suppressor is not great regarding POI change.
My 18" Noveske SPR barrel POI moves down 1 moa when I attach my Saker.
My BCM standard 11.5" POI moves down 2 moa.
My BCM standard 16" middy POI moves down 2 moa.
My BCM 14.5" ELW POI moves down 6.5 moa.
All have concentric mounts. I even sent the 14.5 back to BCM and they verified the concentricity of the shoulder and threads. Also swapped muzzle devices with my other barrels.
I realize the government profile isn't ideal, but for my suppressed use, it seems to be better than the ELW. The Noveske SPR profile is fairly heavy, with only a slight taper across the full length. I can only assume this is why it has such little POI change despite being the longest barrel.


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