I shot my stainless/synthetic BLR this past weekend for the first time. I wish I had a scope on it already, but the sights are actually very usable. I was able to hit bowling pins out at 100yards with the sights alone. I was not shooting from a rest, so I think that was impressive. It impressed me at least.
Although it is not a takedown, it is of course a .270 Winchester.
I'm planning on using it in the cow hunt this next month, with no scope, but when I get around to scoping it, I'll definitely post in a past thread of mine about BLR accuracy and I'll copy the post in your thread about it too.