Hornady Neck Turn Mandrel 7mm .2813 brand_-Cold Steel and the calibre-specific boattail geometry

and the calibre-specific boattail geometry is matched to this weight to maximise ballistic coefficient

while the polyester body will not stretch or sag

Includes Elliptical Expander

The five-bull layout follows the familiar official 10 metre indoor airgun face

and it's confirmed compatible with the Pulsar Thermion thermal riflescope range

Hornady Neck Turn Mandrel 7mm .2813 brand_-Cold Steel and the calibre-specific boattail geometryThe Hornady Neck Turn Mandrel in 7mm (. 2813) is a precision replacement and calibre specific component for use with the Hornady Neck Turning Tool. The mandrel fits inside the case neck during the turning process, providing internal support as the cutter shaves the outside neck wall to a consistent thickness. Uniform neck wall thickness reduces variation in neck tension, which in turn improves concentricity and helps brass seat bullets more