eli5 – How do Projectiles that are made to shatter on impact not shatter in the barrel?

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I allways wondered, because the momentum that pushes them out of the barrel must be stronger than the one they have when they impact a target? so how do barrel launched grenades or paintsballs or other similar projectiles work?

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3 Answers

Anonymous 0 Comments

Because the full force of the projectile isn’t hitting the sides of the barrel.

When you shoot a paintball out of a paintball gun, the paintball is just barely skimming the barrel, so there’s just a bit of friction going on.

Compared to when it hits someone and suddenly comes to a dead stop.

It’s like a car accident where the car just scraps alongside the road barrier, vs a car accident where the car plows straight into a solid wall or big tree and stops instantly.

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