Here are some ammunition models of various caliber. They're good for props or demonstration purposes.
Here are the calibers that I currently have:
-.22 LR
-7.62x25mm Tokarev
-.32 ACP (.32 Auto)
-.380 ACP (.380 Auto, 9mm Short)
-.45 ACP (.45 Auto)
-.222 Remington (Tripple Deuce)
-5.56x45mm NATO
-.22-250 Remington
-.243 Winchester
-7.62x54R
-.410 Shotgun Shell
-28 Gauge Shotgun Shell
-20 Guage Shotgun Shell
-16 Gauge Shotgun Shell
-12 Guage Shotgun Shell
-10 Gauge Shotgun Shell
I know it's a rather random assortment of calibers, but I'd be happy to model anything you'd like. It doesn't take me that long, just leave a comment.
I made them using my Anycubic Photon resin printer. I tried the .45ACP and it was dimensionally accurate and strong enough that I was actually able to load in the magazine, chamber, and eject it.
I modeled these using Solidworks.
The author marked this model as their own original creation.