Is zeroing necessary after barrel replacement on M63-4?

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Jan 15, 2024
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S&W just returned my M63-4. I sent it in because there was a notch in the crown at the 1 o'clock position. They replaced the entire barrel! I thought they'd just recrown it. Total turnaround time was less than 6 weeks. Impressive. This is a J-Frame 22LR revolver with a 5-inch barrel. I sent it in because the groupings weren't as consistent as I'd like and the notch bothered me every time I looked at it. Do you think I need to re-sight the revolver and go through the trial and error of using different 22LR brands? FWIW, the old barrel used to love Remington Thunderbolts. Go figure. Thanks in advance.
 
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