answersLogoWhite

0

slightly under .25 or a quarter inch. the well-known .22 caliber is 5.56 MM. the memory jog for me is my birth year- l956. The Japanese service rifle of 6.5MM was rated as ( .25 caliber) by Rifleman and other Gun periodicals. nice question.

User Avatar

Wiki User

13y ago

Still curious? Ask our experts.

Chat with our AI personalities

BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
DevinDevin
I've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with Devin

Add your answer:

Earn +20 pts
Q: How many calibre is 6 mm?
Write your answer...
Submit
Still have questions?
magnify glass
imp