Quoted:
I'd probably replace the Bolt with a new one depending on how many rounds you've sent down range.
This is a good idea.
You could also use it until it fails and acquire a spare that has been tested in the rifle on-hand (you can fit it in the pistol grip) in case it breaks or the springs/gas rings/etc. wear out on it. Bolt life can go from a few rounds on a bad one or 10's of thousands on a good one. They typically go 5-15,000 rounds before major issues besides springs/rings.
This is one of the principal advantages of the 300 Blackout. I already have two spare bolts that have brand new springs on-hand that fit several rifles (.223 and 300 BLK) if I ever need them. Plus I can use any of my rifles as a donor gun for the others if it ever becomes necessary.
The bolt is the main part that can quickly limit you to less than one shot if it breaks or seriously malfunctions. The gas system can be out line or come loose/leak and you still have a bolt action if you remove the parts if they get in the way. With the lugs, bolt or ejector/extractors breaking, your rifle will not eject the spent round or chamber a new one if it does fail on you.