I wanted a hollow point snap cap because why not and they use less filament than a full round. I use it at the range for training but they can also be used as props or whatever else yall like.

Note: Somebody has pointed out that the rim may be a hair thick for some extractors depending on your printer so consider scaling Z down a few % for compatibility. 

Also: Print at small layer height or file/sand the sides for smoother loading.