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Rifles, Reloading, Optics, Equipment
Reloading
Setting up Forster benchrest sizing die help
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<blockquote data-quote="bigedp51" data-source="post: 1217383" data-attributes="member: 28965"><p>A picture is worth a thousand words......................</p><p></p><p><img src="http://i122.photobucket.com/albums/o254/bigedp51/forster%20cutaway_zpsz9ed4htd.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I also use a universal decaping die and then wet tumble before sizing.</p><p></p><p>I use a bore light and shine it in the vent hole and see where the spot of light hits the expander.</p><p></p><p>I adjust my expander higher so the case neck stays centered in the die longer. If the expander is adjusted too high you will feel the excessive force when expanding the case neck.</p><p></p><p>You can also buy the Forster expander and spindle assemblys and install them on your RCBS dies.</p><p></p><p>Below my RCBS .223 die with the Forster expander assembly installed.</p><p></p><p><img src="http://i122.photobucket.com/albums/o254/bigedp51/IMG_2140_zpsea657d9e.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I'm not sure why the two illustrations below were made with the expander at different heights. "BUT" if you adjust the expander too high as seen in Fig.3 the force on the downstroke of the ram will be excessive and you will damage the case neck.</p><p></p><p>My point being here you can fine tune the expander adjustment and then check the case on a runout gauge. </p><p></p><p><img src="http://i122.photobucket.com/albums/o254/bigedp51/Sizer_Die_011_zpst2zm6m7y.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="bigedp51, post: 1217383, member: 28965"] A picture is worth a thousand words...................... [IMG]http://i122.photobucket.com/albums/o254/bigedp51/forster%20cutaway_zpsz9ed4htd.jpg[/IMG] I also use a universal decaping die and then wet tumble before sizing. I use a bore light and shine it in the vent hole and see where the spot of light hits the expander. I adjust my expander higher so the case neck stays centered in the die longer. If the expander is adjusted too high you will feel the excessive force when expanding the case neck. You can also buy the Forster expander and spindle assemblys and install them on your RCBS dies. Below my RCBS .223 die with the Forster expander assembly installed. [IMG]http://i122.photobucket.com/albums/o254/bigedp51/IMG_2140_zpsea657d9e.jpg[/IMG] I'm not sure why the two illustrations below were made with the expander at different heights. "BUT" if you adjust the expander too high as seen in Fig.3 the force on the downstroke of the ram will be excessive and you will damage the case neck. My point being here you can fine tune the expander adjustment and then check the case on a runout gauge. [IMG]http://i122.photobucket.com/albums/o254/bigedp51/Sizer_Die_011_zpst2zm6m7y.gif[/IMG] [/QUOTE]
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Setting up Forster benchrest sizing die help
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