considering a 40 mm round weights around 5 lbs ... that second video task force has shared with us equates to 100 lbs of lead on the target if not more.
You have to think of how large a 40 mm round actually is. In the above videos... its like having 20 armor piercing golf balls fired at you in about 12 seconds.
Thats going to pierce close to 5" - 6" armor plate, what did U-boats have for armor.
There would definitely be some leaks in the sub.
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