Re: Blueprinting action
I'm not a gunsmith nor have I ever built my own rifle before so take this for what you wish.
In my opinion factory actions are just that, factory actions. Meaning they are mass produced and my guess is the tolerance specs. and quality control are much wider than say a custom action.
How I see it, by not having you action blueprinted you would be taking the risk and hoping your action is closer to the minimum side of factory specs.
For me, it would be the best $200-$250 you ever spent just to eliminate one, potentially big, variable from the gun building scenario. If for some reason it didn't shoot like you wanted it to atleast you would have peace of mind it wasn't the action.