Lee 7.5x54 Mas Case Length Gauge And Shell Holder

Lee 7.5x54 Mas Case Length Gauge And Shell Holder. 5x54 Mas Case Length Gauge and Shell Holder - After a case has been loaded a few times it will stretch beyond maximum length and must be trimmed. The case length gauge (pilot) and shell holder must be ordered as case length gauge and shell holder for each caliber. Second you must order a case length gauge for each case you are going to trim. The case length gauge (pilot) is simply the ruler that is used to measure the length of the case to be t