a Winchester bolt? i’d not worry about it. like others have said...lots of older ‘06s out there and a lot of platforms too. autos, pumps, levers. as long as you are shooting a bolt, and have no pressure signs, i’d use up what you have.
back it off next time you load. and pay attention. next time, it might be a mistake that costs ya. no radio, tv, or other distractions in your handloadking area.
once upon a time, i was loading a pile of 40sw. when it was time to fill the powder hopper again, my dumb ass grabbed the wrong powder container that my brother had left on the bench (i have a strict “one powder container on the bench policy-and that’s the one that is being used”). i didnt catch it until i was about 60 rounds in, but those 60 fell into the same bin as the rest of the loaded rounds. the whole damn thing was a loss. NEVER again. i’m like hitler around my handloading bench these days.