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Tapered barrel on HK rifles - Walleye Message Central
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Old 12-31-2020, 09:55 PM
randyspringer randyspringer is offline
Join Date: Dec 2020
Posts: 1
Default Tapered barrel on HK rifles

The MR556 version of the hk416 has a tapered barrel.
Given that 556 is 5. 7mm in diameter, how small would the caliber reduction be... would the bullet be crushed to about 5. 5mm?

It's claimed to increase velocity but I don't known if that's due to a higher force behind the bullet, or literally because the bullet is slimmer when it leaves the muzzle (and thus has better ballistics)
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