BCR. You might look into the primer situation a bit. That long case often require a small magnum rifle primer, rather than a small rifle primer for best ignition.
<br> For cheap brass, consider Midway's stuff. Their Grade 1 brass is cleaned and has had the primer crimp removed. I've used a lot of it in my .308's.
<br> I'm sure you know all about bedding, triggers, clean bores, and experimenting until you find what they like.
<br> I've owned 3 .223's. Lots of fun. I still lust for one once in a while. I'll probably have to try another before long. I've got room in my safe for just ONE more. E