Thread: AR2206H

I think there must be other factors at play, or ADI needs to be informed. 300fps is way too much flat variation, its 30% pressure drop according to their data- product failure and should be returned for someone to look at.

To be honest I'd see chrony fail/variation factors more likely contributor.. Do you have another chrony you can run it over?

Originally Posted by sixtus

I think there must be other factors at play, or ADI needs to be informed. 300fps is way too much flat variation, its 30% pressure drop according to their data- product failure and should be returned for someone to look at.

To be honest I'd see chrony fail/variation factors more likely contributor.. Do you have another chrony you can run it over?

I have an older Chrony. However, I use a Labradar that was checked with other ammo that gives expected velocities and also checked with a new, different batch of AR2206H which gave the usual 2,800fps it should be getting with 45gr of that powder in my 20" barrel Sako with the 150gr Sierra Gameking. The Labradar is working fine.

Well something is going on mate. That sort of variation is like ADI mislabelling the powder wrong. What you describe is the 2206H is burning several whole rates slower, maybe even slower than AR2209. Thats a massive deal, if its correct it would be a batchlot recall. Might be worth letting the store know to be honest.