Rifled bore

[Flint50]

A few friends and I were having a discussion about rifling and this question came up. What year or time period were bores first rifled? and what twist were the first?

Thanks, Flint50

 

[jim gray]

Rifling first appeared in the middle of the 15th century. It was not very useful for military weapons, except for special circumstances, until the invention of the Minie Ball.

 

[musketman]

Originally, the "grooves" were cut into the barrels to give the fouling a place to go, just wide parallel grooves with little or no twist...