Quote:
With parallel regulation the sights could be counted on at all ranges.
In 1860, Lt. J. Forsyth wrote that W. Greener's premise that the bores would shoot either crossing or diverging was incorrect.
Forsyth noted
The centre of the individual barrel groups being only bore axis to bore axis apart, thus no holding off would be necessary no matter the range.
In reality, for the bores to shoot very close at 100 or 200yards would probably suffice today for most people.
Pretty much says the centre of the groups are bore axis apart.
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Re: Internet absolute: regulation parallel or crossing?