Engineering360: "Weapons maker, US SOCOM develop underwater bullets"

"... This makes military underwater operations and missions virtually impossible. .."

This comes as quite a surprise to someone having be a part of US submarine service.

The cardboard target indicates the projectile struck it sideways. I could not determine viewing the video if the projectile was tumbling before entering the gel nor while traveling through the gel.

Based on the tracks through the gelatin, it appears the projectile was flying stable through then entire first portion. It wasn't until it exited the first and entered the second segment that the tracks noticeably curve.

Perhaps the exit from the end of the first segment was not square, or maybe that red material before the second segment altered the path.

I doubt the projectile could have made it through so much gelatin in such a straight path had it been tumbling early.

It is interesting,... when you hear stories from D-Day, that your difference between life and death, was a matter of inches of water while hitting Omaha beach.