The purpose of the seating die FIG 62 is to insert the bullet into the case and to push it down into the case the proper amount.
How far the bullet is pushed into the case will determine the overall length (OAL). Several factors go into determining the proper OAL - such as, the maximum recommended OAL, listed in the reloading manual, and the type of bullet being loaded. The type of bullet can determine the OAL in one of two ways. If the bullet has what is called a cannelure, or crimping groove (items A&B in FIG 63), this will determine the proper OAL. If the bullet
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