Lee Undersize Mandrel .222 for Collet Sizing Dies

• Undersize mandrel for use with Lee Collet Neck Sizing Dies
• Increases neck tension for a tighter grip on the bullet
• Fits .220" collet dies for 222 Remington, 223 Remington, 22-250 Remington and 22 Hornet
• Simple drop-in swap for the standard factory mandrel
• Precision-made for consistent, repeatable reloads
• Long-lasting hardened construction

The Lee Undersize Mandrel .222 is a reloading accessory for handloaders using Lee Collet Neck Sizing Dies on .220-calibre cartridges, covering 222 Remington, 223 Remington, 22-250 Remington and 22 Hornet — classic UK vermin and fox calibres. Lee's collet dies are supplied from the factory to grip a bullet with a light press fit on cases of average hardness; fitting this undersize mandrel in place of the standard mandrel reduces the case neck diameter slightly further, giving a tighter hold on the bullet for handloaders who want more consistent neck tension, particularly useful with cases that have thinner or softer necks. It's a simple swap within the die body and doesn't call for any other tooling changes or a whole new die set. Precision-made and long-lasting, it's a low-cost way to fine-tune reloading consistency across any of the four supported cartridges. A useful accessory for stalkers and vermin controllers who reload their own ammunition for .222 Remington, .223 Remington, .22-250 Remington or .22 Hornet rifles and want to dial in case neck tension for tighter, more repeatable groups.

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