Re: TL 5-8 firearms in Ultra-Tech calibers
7mm is a common hunting calibre, as is ".270", which is very close to 7mm, and 7mm military rounds were once quite common too. While Germany went with the 7.92mm/8mm Mauser, 7x57mm Mauser was a very common military round in the rest of the world for much of the early 20th century. Which is to say, 7mm is actually a common rifle calibre, especially outside the USA.
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Rupert Boleyn
"A pessimist is an optimist with a sense of history."
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