If the bullet you're using doesn't have a cannelure, then you'll need to refer to your reloading manual for the suggested OAL. The purpose of the cannelure is to secure the bullet by giving the mouth of the case something to dig into when being crimped. When the bullet is properly seated, the mouth of the cartridge case should be in the middle of the cannelure, see arrow FIG 114.
Refer to your reloading manual. Under the section specified for the caliber you're loading, you'll find a schematic of the cartridge. For example, .30-06 lists a maximum OAL of 3.340" (Lyman Reloading Handbook). If you're seating the bullet to the cannelure, the OAL should be well within the maximum OAL listed, however, use a set of dial calipers to check it. (Dial calipers are available from Dillon Precision). If the bullet you're using doesn't have a cannelure, refer to its specific type in the reloading manual. For example - if you're loading a .30-06 180 gr. JHPBT, and it doesn't have a cannelure, use the suggested OAL of 3.280 (Lyman Reloading Handbook).
K. Station 4 - Seating Stem for rifle FIG 115:
Unlike pistol seating dies, rifle seating dies come with only one type of seating stem.
Dillon seating dies, which are being used in this manual, are easily disassembled. Should you need to disassemble the rifle seating die - simply unscrew the seating stem from the top of the seating die FIG 115.
L. Station 4 - Installation and Adjustment of the Seating Die
1. Place a lubricated sized case into Station 4 and raise the platform.
Was this article helpful?