Funny you should ask. It just arrived yesterday evening.
So I started looking it over and immediately something looked different. I'm not sure, but I could almost bet it has a different barrel on it.
i was told there would be a 'invoice' when it returned showing what had been done. There was none. No paperwork whatsoever. Just a shipping label, a box and a rifle.
I called savage this morning and they tell me they couldn't find anything wrong with it but they did "disassemble, clean and headspace.
Now why would they do that if there wasn't an issue?

Now, I installed the bolt and immediately notice that it seems a little bit less loose, a fair bit smoother, and most definitely locks and unlocks easier than it did before. Not like a custom rifle or anything, but just better. Loaded up the mag and dry cycled several dozen rounds. I had one round just barely catch out of about 50-60 cycles. BTW, that was with both the factory mag and the dark eagle mag. Both were equally troublesome before.
I also checked the bullet seat to lands and guess what? Factory seating length no longer touches the lands.
So not sure what they really did, but it is way better than it was.