The Thunder Nipples use an 8mm thread that tapers at the end to lock into the Thunder Dome Breech Plug. This magnum ignition system assures you a torch-like flame to ignite the powder.
Specifications and Features:
- 8 mm tappered thread
- Breech Plug
- Magnum 209 adapter for use with 209 shotgun primers (improved design).
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. www.P65Warnings.ca.gov