As a qualified Gunsmith, personsally I would take it to a local Gunsmith and have it checked out before you take it hunting or shoot it again. If in fact there are "stress fractures" referred to as "striation cracks", the will be difficult to see with the naked eye. A magnifying Fiber Optic device is used with an artificial built in light source, with magnification adjustment to examine/scope and check the Bolt, chamber, throat & leade (The area just in front of the chamber where the rifling begins) for any surface damage and/or fine hairline cracks....Not every Gunsmith has this equipment, so it might take you a while to locate a Gunsmith equipped to do this.Chamber castings are useless to diagnose any of these problems, and Magna Fluxing hasn't been used for the last 15 years or so (Suggested by another answerer)
You aren't going to like this part either, but I would stay on the side of caution and not use the rifle...even if it means using another. It isn't safe to fire so there is no way to insure that there isn't damage enough to effect the accuracy anyway...You don't want to go on your hunt only to take a chance that your rifle won't hit anything accurately or God forbid you get hurt or someone else does.....Sorry, but thats the straight scoop.
P.S. You might be perfectly OK, but if it is in fact damaged, a few rounds down the road and that thing could just come apart in your hands and face..You lucked out this time, don't tempt fate again....
Gunsmith/Gun Shop Owner-Dealer
Firearms Appraiser & Collector
Long Range Rifle Team Member-Competitor 16+ years
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