A 19th century Colt .44 cap and ball and 20th century .45 ACP are the same. Both have .440 lands and over .450 grooves. 20th century marketing!
The .36 and .38 Special are not the same, the latter being smaller, generally .357 or .358 lands.
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“Gird up now thy loins like a man; for I will demand of thee, and answer thou me.” - Job 38:3
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