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Rifles, Reloading, Optics, Equipment
Reloading
Best bullet release/neck tension?
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<blockquote data-quote="bigedp51" data-source="post: 1442910" data-attributes="member: 28965"><p>The biggest cause of case neck runout is caused if the expander is locked down off center.</p><p></p><p>With the Forster die and its high mounted "floating" expander the case neck is held and centered in the neck of the die when the expander enters the case neck. And the expander can not pull the case neck off center.</p><p></p><p>Below the Co-Ax Washer (W-10) is a rubber washer that allows the expander spindle to move and float and self center in the case neck.</p><p></p><p><img src="https://i.imgur.com/Y7Iyv8o.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below I ordered Forster expander and spindle assemblies for all my older RCBS dies. The RCBS expander on the left is raised as high as it will move.</p><p></p><p><img src="https://i.imgur.com/5kfnKwd.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Below I modified a Forster expander assembly to fit on my Redding .243 full length dies. The Forster spindle was cut to the correct length for proper expander height and a rubber o-ring was added under the lock ring. I can see why so many reloaders do not like expanders. I do not understand why Redding makes oblong expanders with their added drag but also sells round carbide expanders.</p><p></p><p><img src="https://i.imgur.com/kWbieba.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>NOTE, Redding includes expanders with their bushing dies for people who do not turn their case necks. Redding also recommends to size the neck with a bushing .002 smaller than expander diameter. And this will push the neck irregularities to the outside of the case neck.</p><p></p><p>Below a Lyman type "M" expander for a .223, many AR15 reloaders use this expander for its increased bullet grip and do not crimp. The main part of the expander is .003 smaller than bullet diameter and the case mouth is just bumped onto the .226 step of the expander. This helps with straight in line bullet seating and reduces bullet runout.</p><p></p><p><img src="https://i.imgur.com/ohIUcpd.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1442910, member: 28965"] The biggest cause of case neck runout is caused if the expander is locked down off center. With the Forster die and its high mounted "floating" expander the case neck is held and centered in the neck of the die when the expander enters the case neck. And the expander can not pull the case neck off center. Below the Co-Ax Washer (W-10) is a rubber washer that allows the expander spindle to move and float and self center in the case neck. [IMG]https://i.imgur.com/Y7Iyv8o.jpg[/IMG] Below I ordered Forster expander and spindle assemblies for all my older RCBS dies. The RCBS expander on the left is raised as high as it will move. [IMG]https://i.imgur.com/5kfnKwd.jpg[/IMG] Below I modified a Forster expander assembly to fit on my Redding .243 full length dies. The Forster spindle was cut to the correct length for proper expander height and a rubber o-ring was added under the lock ring. I can see why so many reloaders do not like expanders. I do not understand why Redding makes oblong expanders with their added drag but also sells round carbide expanders. [IMG]https://i.imgur.com/kWbieba.jpg[/IMG] NOTE, Redding includes expanders with their bushing dies for people who do not turn their case necks. Redding also recommends to size the neck with a bushing .002 smaller than expander diameter. And this will push the neck irregularities to the outside of the case neck. Below a Lyman type "M" expander for a .223, many AR15 reloaders use this expander for its increased bullet grip and do not crimp. The main part of the expander is .003 smaller than bullet diameter and the case mouth is just bumped onto the .226 step of the expander. This helps with straight in line bullet seating and reduces bullet runout. [IMG]https://i.imgur.com/ohIUcpd.png[/IMG] [/QUOTE]
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Best bullet release/neck tension?
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