RCBS Case Forming Dies are used to create brass cases for very hard to find or expensive cartridges out of readily available brass. They are designed to change the case in small steps to eliminate excessive stress on the brass. After forming and trimming, the cases must be full length sized for final forming. These sets may consist of one trim die or a whole set containing up to three dies, expander ball, ream die and reamer depending on the case being formed. Instructions are included with each set.
Material: Heat-Treated Steel
Die Type Included:
Plastic storage case
Standard 7/8"-14 thread.
The trim die doubles as a visual case length gauge. Run a case into the trim die and if the case stck out above the top of the die, it's too long. File the case down until it is flush with the top of the die. After this process, deburr.
Cases with an overall lenth of 1.700" and shorter require the use of an Extended Shellholder (not included).
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