I only have one, but it shoots good, and the receiver fit was snug. Contour matches the factory as well, so no stock adjustment needed. I also have a pair of their 16" barrels and they both perform well.

 

I got one attached to an Elite 22 receiver. Like the previous poster said, it was a tight fight. A freezer was involved.
It shoots well as far as I can tell. Ive only got a chance to zero the red dot and go through maybe 2 25rd mags.
Here she is in a PMACA Lightweight

 

I have 2 and they are just as accurate as the ruger.

 

Shot the black barrel one today. 25 yds

Charger Day on the home range

Finally zeroed my built charger. Then shot some groups. 22 charger, pike arms 8” barrel, Ruger bx trigger, Power Custom Match ( what it says) bolt, BSA 2-7 edge pistol scope. Eley Force 42g hv. All from 25 yds. 86^ fells like 90, 55% humidity, dew point 68^. Blind man with progressive lenses...

www.rimfirecentral.com

 

Well ... bought the barrel and promptly returned it for a refund. The barrel fit to the receiver (BRN-22) was the loosest I've ever seen. Didnt want to deal with that problem.

 

Did you measure the barrel shank or the receiver hole? I wouldn't be surprised if the receiver is on the big/loose end of the scale.