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Rifles, Reloading, Optics, Equipment
Reloading
newbie question about case trimming
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<blockquote data-quote="Kennibear" data-source="post: 900148" data-attributes="member: 51650"><p>A square neck helps when seating the bullet and keeps the runout down. I use the Lee setup and keep a cutter and lock stud with the case length gauge and shell holder for each caliber in the die box. It is not much time to touch up the necks on 20 rounds if the setup is waiting ready to go. Don't let the cases get longer than SAAMI spec as a jammed neck is very bad juju.</p><p></p><p>The sliding collar style seating dies are the best press mounted dies for low runout but I think the bullet started seating with an unsquare neck cannot help the runout.</p><p></p><p>I have a Forrester Trimmer too and it is the best but the Lee setup works better than its price. Some of the trimmers that use conventional shell holders do not hold the case head as concentric as the Forrester's collet system. They rely on the case's extractor groove and shellholder rim cut being compatible. Too much play for me. The Lee uses the flash hole to line up the case length mandrel so is not dependent on a good shell holder fit. But an off center flash hole screws thing up some.</p><p></p><p>Just my thoughts....</p><p></p><p>KB</p></blockquote><p></p>
[QUOTE="Kennibear, post: 900148, member: 51650"] A square neck helps when seating the bullet and keeps the runout down. I use the Lee setup and keep a cutter and lock stud with the case length gauge and shell holder for each caliber in the die box. It is not much time to touch up the necks on 20 rounds if the setup is waiting ready to go. Don't let the cases get longer than SAAMI spec as a jammed neck is very bad juju. The sliding collar style seating dies are the best press mounted dies for low runout but I think the bullet started seating with an unsquare neck cannot help the runout. I have a Forrester Trimmer too and it is the best but the Lee setup works better than its price. Some of the trimmers that use conventional shell holders do not hold the case head as concentric as the Forrester's collet system. They rely on the case's extractor groove and shellholder rim cut being compatible. Too much play for me. The Lee uses the flash hole to line up the case length mandrel so is not dependent on a good shell holder fit. But an off center flash hole screws thing up some. Just my thoughts.... KB [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
newbie question about case trimming
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