Me and 2 of my friends have the Colt HBAR 16" 1/9 twist barrels and all 3 of them shoot under MOA. Sounds like you found a deal. They make an excellent calling rifle. If you reload try Benchmark powder, it burns very clean and will give you great velocity, I get 3285 fps with 50 grain bullets. Mine hardly looks the same as when it was new but here it is, by far my favorite rifle.