Rifling

Rifling

!Rifling of a 105 mm [Royal Ordnance L7 tank gun](//upload.wikimedia.org/wikipedia/commons/thumb/b/b2/105mmtankgunRifling.jpg/250px-105mmtankgunRifling.jpg)

Rifling

!Conventional rifling of a 90 mm M75 [cannon (production year 1891, Austria-Hungary)](//upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Riflingofacannon%28M75%3B90mm%3By.1891%3BAustro-Hungarian%3BexposedinLjubljana%2CSlovenia%29.jpg/250px-Riflingofacannon%28M75%3B90mm%3By.1891%3BAustro-Hungarian%3BexposedinLjubljana%2CSlovenia%29.jpg)

Rifling

!Rifling in a [GAU-8 autocannon](//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/GAU-8bore.jpg/250px-GAU-8bore.jpg)

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