Sinclair International ( Brownells) SS Neck Turning Mandrel-375 Cal

Sinclair stainless steel neck turning for 17 through 50 caliber cartridges are turned from high grade stainless steel on precision turning centers. Neck Turning mandrels are sized .002 inch under bullet diameter and expander mandrels are .001 inch under bullet diameter. These mandrel fit the Sinclair NT-1000, NT-3000, and the Premium Neck Turning Tool. As side benefit the Sinclair mandrels can be used to ""neck"" cases up to the next caliber when used with the Gen II Expander Die Body.  For standard calibers 17- 8mm caliber use the Standard Gen II Expander Die Body (our part number SIN-749-011-715) and for larger calibers use Gen Larger Caliber Expander Die Body (our part number SIN-749-008-843).