One might get away with this philosophy in regard to American built guns like the Parker, Fox, L. C. Smith, etc.
Their barrels generally run a bit "thick" to begin with. Thus a hone or two might not be dangerous.
However, do NOT count on this approach with British or European guns. Especially those from the 19th or 20th centuries. Their barrels were often turned to a thinner overall wall thickness/contour to begin with. Thus, a bore gauge might suggest "OK" after honing, but the actual wall thickness could well be below safe limits.
It is also important to know where a barrel might be thin. Anything odd within the first 18 inches is vital to know about.
To paraphrase Gen. Douglas MacArthur, "there is no substitute for wall thickness."
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