Still working up a load in my. The Stevens are 1 in 10, so they SHOULD like 180's, however I've not tried them. I've not yet been able to find a load with Sierra MK 168's that this rifle likes at all 
 
It REALLY likes the winchester white box 147gr FMJ's - I can always shoot 3-shot groups where all holes are touching with these.
I've also been playing with 100gr Speer TNT's. These are too short to seat to the lands, but perform very well crimped. 
From my experiences thus far, I'd say this is a picky rifle. I have noted that it shoots best when the barrel is warm.
The forend of my stock is warped, or the rifle bedding is an issue - the side of the stock is in contact with the barrel. I shimmed the action (haven't bothered to bed it yet, my bad) - shoots a bit better since. 
I think I'm done playing with it in .308 form - I actually bought it with the intention of re-barrelling it to 7.62x39 (.308). I have the barrel, and the tools just came in from Brownells, so it's done as a .308. I'll probably keep the 308 barrel as a 'switcher'
Pics in my sig below