I've got one and as mentioned above it's about a 1moa rifle, maybe a hair under. But to compare it to my OBR--or to a good bolt rifle which for the same money ($2,000 easy with scope mount, prob a little more) will be a .25MOA gun...
But, seriously--it's a cool piece of vintage hardware with some serious ergonomic issues compared to modern rifles, getting a good scope base is annoying (I have a basset mount, which is prob one of the most reliable ones) and without a really high cheek pad it's an actual chin weld, not even close to the cheek. The safety is annoying, the bedding/stock fit issues are annoying, the mag release is not nearly as nice as a semi auto AR type or even an FAL.
It's basically an M1 Garand (which I also have a few of) with a detachable mag. Seriously. Take them both apart and you'll see.
Again, I love mine, but it's like owning a muscle car, and selling a good bolt rifle and planning to use an M1A platform gun as a precision rifle is asking for some serious headaches. It's more something you own in addition to your bolt rifle.