Description
Hand priming is one of those reloading steps where feel matters, and the Lee New Auto Prime gives you that control cartridge after cartridge. This kit pairs the Auto-Prime tool with a smart molded storage box and a starter set of shell holders, so instead of hunting for the right adapter every time you sit down at the bench, everything lives in one place. It's the kind of tool that earns a permanent spot in your reloading rotation.
What the Lee New Auto Prime Kit Brings to the Bench
The heart of the kit is the New Auto-Prime, a hand tool that lets you seat primers by feel rather than relying on a press. It ships with both small and large priming assemblies, so you're covered for small rifle, small pistol, large rifle, and large pistol primers without buying anything extra. A folding primer tray is included to help orient and feed primers in, which keeps your fingers off them and cuts down on contamination from skin oils.
Shell Holders and Cartridge Coverage
This is where the Auto Prime Kit really pulls its weight. It comes with 8 of the most popular priming tool shell holders, numbers 1, 2, 3, 4, 5, 11, 12, and 19, which together cover well over 130 different cartridges. From common pistol rounds to popular rifle calibers, there's a good chance your load list is already handled. These are the Auto Prime style holders, which are different from your press shell holders, so having a dedicated set here is a real convenience.
Storage That Keeps the Kit Organized
The molded box is more than packaging. It holds the tool, the priming assemblies, the tray, and your shell holders all in one case, with room left over for about 10 additional holders as your collection grows. If you've ever lost a tiny shell holder in a drawer, you'll appreciate having a designated slot for each one. Toss it in your range bag or stack it on the shelf and your whole priming setup travels and stores as a single unit.
Key Specifications
- Manufacturer: Lee Precision
- Manufacturer Part Number: 90215
- UPC: 734307902155
- Model: New Auto
- Product Type: Hand Priming Tool
- Caliber/Gauge: Multi-Caliber
- Primer Compatibility: Small and Large Primers
- Shell Holders Included: 8 (sizes 1, 2, 3, 4, 5, 11, 12, 19)
- Cartridge Coverage: Over 130 different cartridges
- Additional Holder Storage: Room for 10 more shell holders
- Function: Holds and seats primers
- Dimensions: 6.8 x 4.4 x 1.6 in
What’s Included
- Lee New Auto-Prime hand priming tool
- Small priming assembly
- Large priming assembly
- Folding primer tray
- 8 priming tool shell holders (sizes 1, 2, 3, 4, 5, 11, 12, 19)
- Molded storage box
Frequently Asked Questions
What primers does the Lee New Auto Prime Kit work with?
The kit includes both a small and a large priming assembly, so it handles small rifle, small pistol, large rifle, and large pistol primers. You just swap the assembly to match the primer you're seating. Nothing extra to buy to cover both sizes.
Which shell holders come with the Auto Prime Kit?
It comes with 8 of the most popular priming tool shell holders in sizes 1, 2, 3, 4, 5, 11, 12, and 19. Together these cover more than 130 different cartridges across pistol and rifle calibers. The molded box also has space for roughly 10 additional holders as you expand.
Are these the same shell holders my press uses?
No. The Auto Prime uses its own style of priming tool shell holders, which are different from standard press shell holders. Having a dedicated set in this kit means you don't have to share or swap holders between your press and your priming tool.
Why use a hand priming tool instead of priming on the press?
A hand tool like the New Auto-Prime lets you seat primers by feel, so you can sense when a primer is fully bottomed in the pocket. It also keeps your hands off the primers thanks to the feed tray, which reduces contamination. Many reloaders find it faster and more consistent for batch priming than doing it on the press.





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