You're Not Going To Believe This AR Caliber (.22-250) and Who Made the Barrel...

not new guy said:
Boris?
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No but that would be awesome.

Finally took the above upper out to the range today.

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Lower is an old Aero M5 that I have been using for my 6.5 Creedmoor. .22-250 uses same receiver and BCG. A few months ago a friend gave me a pile of .22-250 ammo, some brass, and a set of dies. The blazing speed of .22-250 always intrigued me and with the gift of so much ammo, I started looking for options to shoot it.

Once I saw a very good deal on a barrel, it was a no brainer to jump in. ~$150 on sale & a discount coupon, plus shipping and tax. The only catch was it was made by the much maligned Bear Creek Arsenal. I had all the other parts, so what the hell...

Honestly, Bear Creek did a very good job on this barrel. Perhaps they farm it out, but if that's the case they did a good job vetting suppliers. It shot several groups under 1 MOA excepting one that I screwed up and pulled a shot for around 1.25 MOA. One group was around half MOA but I think that was a random anomaly. Looks like it's going to shoot ~0.85 MOA with the factory ammo. It's a slow twist barrel, so I'll need to feed it 40 to 60 grain pills.
 
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chris_1001 said:
Yawn. Wake me when it’s .50 BMG.
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As Rodney Dangerfield would say, "Ooh, tough crowd, tough crowd."

I do have a 50 and some SLAP rounds. You shoot and I'll hold the camera-

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The 6mm-250 was tried, with varying degrees of success, as a match rifle. It had the accuracy, but reliability killed it.
 
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