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Old 19th Jan 2017, 23:05
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MickG0105
 
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Originally Posted by Small cog
7.62 is also NATO standard.
7.62 x 51mm is NATO, 7.62 x 39mm is Soviet where 51mm and 39mm refer to the length of the casing. Standard NATO spitzer point, boat-tail, full metal jacket (ball) projectiles are 33.3mm long. The round in the photo is almost certainly a 7.62 x 39mm projectile.
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