Lee Collet Neck Sizing Die .338 Lapua Magnum 1¼"-12 Thread
S83412
The Lee Collet Neck Sizing Die for .338 Lapua Magnum is a single neck-sizing die built to Lee's Large Series standard, using a 1¼"-12 thread body rather than the common 7/8"-14 pitch. That larger body is necessary because .338 Lapua Magnum has a large-diameter case body that exceeds the capacity of a standard die shell. Inside the die, a hardened steel collet squeezes the fired case neck inward against a precision mandrel, sizing only the neck and leaving the body fireformed to your chamber. The result is minimal brass stress on each reload, extended case life, and very low neck run-out — all of which matter to long-range precision shooters and stalkers working at extended ranges with this military-heritage cartridge. The die ships as a single unit without a seating die; reloaders building a full die set will need to pair it with the Lee Large Series seating die. Compatible with the Lee Classic Cast Press and any other press accepting 1¼"-12 thread dies.
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