Lee 300 WIN MAG Case Length Gauge is a precise, easy way to trim to length and square the case mouth. Used with the Cutter and Lock Stud or Zip Trim. Trim to length 2.600 to 2.620 inches.
Specifications:

Type	Case Length Gauge w/Shell Holder
Caliber	300 Winchester Magnum
Size	.30
Quantity	2 Piece
Weight	.08 lb
Function	Measure Cases
Compatible With	Cutter/Lock Stud
Material	Steel
Includes	Gauge/Holder
Capacity	1 Casing
Media Capacity
Finish	Silver
Grain
Media Type	Brass Shell
Micrometer Type