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Rifles, Reloading, Optics, Equipment
Reloading
Competition Dies?
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<blockquote data-quote="Fiftydriver" data-source="post: 69775" data-attributes="member: 10"><p>Srhaggerty,</p><p></p><p>Hope things are going well for you my friend!!</p><p></p><p>With a set of Redding Comp dies it is critical to maintain these dies.</p><p></p><p>This is very simple to do, they just need to be disassembled and cleaned up from time to time. Especially the neck sizing die. When using the neck sizing Comp die, eventually small brass filings can build up around the sizing bushing itself. If these chips make their way behind the bushing and its support the bushing will be out of axial alignment with the sleeve and you will see increased run out.</p><p></p><p>Other then that it is good to clean the body of the sleeve and the die to keep any dust or chips out from between these two componants. This will reduce wear which will loosen the fit of the die, also the sleeve should be oiled "lightly" on its outter surface so reduce friction and wear.</p><p></p><p>TO set these dies up properly, raise the ram in the press up to its highest point with the shell holder in place. Then screw in the Comp neck sizing die until the spring loaded sleeve is compressed totally, DON"T FORCE THINGS. At this point unscrew the die body in the press at least one full turn and lock the die in place. </p><p></p><p>Then to adjust the amount of neck sizing on the case, use the mircometer adjustment and raise it as far up as possible without removing this stem.</p><p></p><p>Insert a case and raise it to the top of the sizing stroke. Now turn down the mircometer adjustment until you feel the bushing contact the top of the case.</p><p></p><p>Lower the case and turn down the bushing adjustment 0.100" or so and size the case. Adjust as needed until you get the correct amount of neck sized for your needs.</p><p></p><p>The seater die is set up the same way.</p><p></p><p>I generally roll my ammo over an RCBS case master concentricity guage to check both neck run out after neck sizing and bullet run out after final bullet seating. This monitoring allows me to keep track of any run out problems which are 99% of the time a result of a brass chip.</p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 69775, member: 10"] Srhaggerty, Hope things are going well for you my friend!! With a set of Redding Comp dies it is critical to maintain these dies. This is very simple to do, they just need to be disassembled and cleaned up from time to time. Especially the neck sizing die. When using the neck sizing Comp die, eventually small brass filings can build up around the sizing bushing itself. If these chips make their way behind the bushing and its support the bushing will be out of axial alignment with the sleeve and you will see increased run out. Other then that it is good to clean the body of the sleeve and the die to keep any dust or chips out from between these two componants. This will reduce wear which will loosen the fit of the die, also the sleeve should be oiled "lightly" on its outter surface so reduce friction and wear. TO set these dies up properly, raise the ram in the press up to its highest point with the shell holder in place. Then screw in the Comp neck sizing die until the spring loaded sleeve is compressed totally, DON"T FORCE THINGS. At this point unscrew the die body in the press at least one full turn and lock the die in place. Then to adjust the amount of neck sizing on the case, use the mircometer adjustment and raise it as far up as possible without removing this stem. Insert a case and raise it to the top of the sizing stroke. Now turn down the mircometer adjustment until you feel the bushing contact the top of the case. Lower the case and turn down the bushing adjustment 0.100" or so and size the case. Adjust as needed until you get the correct amount of neck sized for your needs. The seater die is set up the same way. I generally roll my ammo over an RCBS case master concentricity guage to check both neck run out after neck sizing and bullet run out after final bullet seating. This monitoring allows me to keep track of any run out problems which are 99% of the time a result of a brass chip. Good Shooting!! Kirby Allen(50) [/QUOTE]
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