Stan within some small amount, sure it matters, but remarkably little. Hard to see how mount affects one barrel more than another. If it did, what was the unshot barrel doing? Going the other direction? Nitrah has, as I understand it, nonoverlapping patterns. That's not some small amount.

Keep in mind that no one is fitted for regulation when a gun is built but rather it is regulated at the factory - almost always with no problems - and then shot by unknown owners or at least persons whose mount and shooting shooting styles are unknown to the mechanics doing the regulating.

If regulation was so sensitive to the individual shooting it, we would never get anywhere with these vintage guns without having to take them down to bare barrels and rebuild them.

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BrentD, (Professor - just for Stan)
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