Hey fellow barrel nuts!

Just got my new Criterion barrel in .223 from Jim (NSS) in a 1:8 twist (and 28" length).

I'm going to verify/test her out using 69gr SMKs, but want to work up some longer range loads with either the 77gr or 80gr SMKs (which I need to order).

Any experience you've had with these in similar/same barrel would greatly be appreciated (always cuts down some time, effort, and $ to get there).

Thanks in advance for your feedback.


Jim