I have a BVSS 223 that is several years old now and I experienced your same issue with it when I first got it
Sent it back to Savage, a couple of weeks later had it back with a new barrel
They did not tell me what was wrong, just that it needed a new barrel which was ok with me as it was a real shooter on return
Sorry you are having trouble but they will get it straightened out for you ( I think some bad ones just slip through)
Jack
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