Over Penetration

This is one of the reasons I no longer use NSA slugs in my airguns. Even at higher energies, they simply fail to expand, even on larger game.

This is why I've chosen to keep shooting Hybrid Slugs, but again, if they are not shot with sufficient velocity, the expansion is limited.

Here is a photo of a .30 cal Hybrid Slug after full passthrough on a groundhog bodyshot at 66 yards. The slug traveled 10 foot after exit.
View attachment 303225
How fast are you shooting?
 
How fast are you shooting?
930 fps.

These photos show the Hybrids after a full passthrough on a groundhog.

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