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Lee Case Length Gauge 300 Win Mag 90142
The simplest way to check the case and trim to the correct safe length is with a Lee Case Trimmer.
After a case has been loaded a few times, it will stretch beyond maximum length and must be trimmed. The Cutter and Lock Stud works for all calibers. You will need only one. The Case Length Gauge (Pilot) and Shell Holder must be ordered as Case Length Gauge and shell holder for each caliber.
Trim cases by hand or electrically. Can be used with an elecrtric drill to trim, chamfer and polish cases faster. Eliminates danger of long cases. Squares the mouth for more accurate bullet seating and exit.