Sinclair 338 Calibre (.337") TiN Coated Expander Mandrel Turning Mandrel_.32 Calibre/8MM Radar Rifle Bolt Holder

Radar Rifle Bolt Holder

and 1/4-inch

These tubes speed up powder flow

and using only the fired brass from your rifle

Sinclair 338 Calibre (.337") TiN Coated Expander Mandrel Turning Mandrel_.32 Calibre/8MM Radar Rifle Bolt HolderThe Sinclair TiN Expander Mandrels are a great option for those who want increased resistance to abrasion over Stainless Steel Mandrels, but don't want to feel the need to upgrade to our Carbide Mandrels. The Titanium Nitride coating process adds increased lubricity and abrasion resistance over the standard steel mandrels. Expander mandrels are made to 0. 001" under bullet diameter. Originally designed to be used to expand the necks of brass prior to