These are fake (ie dummy) primers Small Pistol/Rifle, Large Pistol, and Large Rifle. You can use these to make snap caps. Dimensions are the mean dimensions from the ballistictools table here https://ballistictools.com/articles/primer-pocket-depth-and-diameter.php
Print with 100% infill in PLA, or better yet, TPU. Use a brim (see photo), especially if you print many. That gives you a handy sheet of them that are easy to pop/peel into the pockets quickly.
| LargePistolPrimer.stl | 175.6KB | |
| LargeRiflePrimer.stl | 175.4KB | |
| SmallPistol-RiflePrimer.stl | 182.9KB |
