Hornady Spring Loaded Primer Seater for 366 Auto
S117800
- Spring-loaded primer seater upgrade for the Hornady 366 Auto shotshell press
- Set once and leave — no need to readjust the punch when changing hull brands
- Compatible with 12 gauge and 20 gauge shotshell reloading
- Retrofits to nearly any Hornady 366 Auto press already in the field
- Reduces bench interruptions and keeps reloading sessions running smoothly
The Hornady Spring Loaded Primer Seater is a retrofit upgrade for the Hornady 366 Auto progressive shotshell reloading press, designed to make primer seating faster and more consistent at the reloading bench. Once set, the spring-loaded mechanism holds its adjustment regardless of which brand of hull you feed through the press, removing the need to constantly re-set the punch when switching between hull manufacturers. This means you can run mixed batches without interrupting your reloading rhythm. Compatible with 12 and 20 gauge shotshell reloading, the seater can be retrofitted to nearly any 366 Auto press already in the field, making it a straightforward upgrade for reloaders who want more consistent primer seating depth across a full reloading session. A practical bench accessory that reduces fiddling and keeps production moving.
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