Only the Lee 300 Win Mag Collet Die uses a Collet to squeeze a Mandrel, resulting in a perfectly aligned case neck with less run out. For a flawless bullet fit with minimal run-out, a collet squeezes the case neck against a precise mandrel. It only sizes the neck and doesn't require any lubrication. Collet-style decapper clamp keeps the simple X expander
firmly centered in the die while allowing the decapper to move up without breaking if an obstruction is encountered. Features:
No lubrication required
Extends case life 10x
Fastest to use
No cleaning or lubing required
Sturdy shank so strong you can drive out a stuck case without damage.
Long guided neck expansion area located to begin expanding as soon as the neck leaves the die at the presses maximum position.
Tapered area expands sub calibers when case forming, quickly and effortlessly reforms dented or squashed necks.
Super strong integral decapper is almost unbreakable.