There is a lot of great info over on 24 hr, along with a number of really knowledgeable folks, but 99% of them are remington fans. I think the biggest beef that most have is the fact that there aren't nearly as many aftermarket parts, and you can't tinker as much (or as cheaply) as you can with a remington. The odd thing is that most don't seem to consider the fact that there isn't usually a need to tinker with an a-bolt.
I shoot honest sub-MOA 3 shot groups with my abolt 270 with handloads and Hornady custom factory ammo, and 1-1.25" groups with cheap core-lokt, so why would I want to mess with it? I did splurge and put a lighter spring in it, but that's it. If I spent more time working up loads, along with playing with the BOSS, I'm sure I could tighten them up to 1/2" or so, but it's good enough for me for the conditions that I hunt.