Tag Archives: MK 258 Mod 1

Nammo’s 30 mm Swimmer (APFSDS-T MK 258 Mod 1) The Bullet That Swims Through Water

Posted on Friday, 12 October, 2018 by twobirdsflyingpub

While traditional ammunition is either stopped or deflected when it hits water, Nammo’s 30 mm Swimmer (APFSDS-T MK 258 Mod 1) swims straight through water, thanks to a groundbreaking design on the supercavitating projectile developed in cooperation with the US … Continue reading →

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