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Rifles, Reloading, Optics, Equipment
Reloading
First time shoulder bumper
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<blockquote data-quote="fj40mojo" data-source="post: 462703" data-attributes="member: 19129"><p>Back your die out until you get full stroke with your press then begin screwing the die in in small incriments while sizing a lubed case. If you hold your hand up behind the die/shellholder contact area and look to see if there is any visible light ie space between the shell holder and the sizer when you are at the bottom of the stroke. You will feel the opperating mechanism "cam over", this is all the tolerance in the moving parts being taken up. If there still a sliver of light you can turn the die in a little more continueing with this process until you get zero gap between the two at full stroke on a case on it's first pass through the die. I reccomend you measure every time you make an adjustment. If at this point you are still only getting .001 bump then the die may need to have .001 turned off the bottom. Be careful, too much bump will generate an excessive headspace condition which will cause more problems. A .001 bump is probably OK but you may run into a chambering problem if your chamber is dirty or you don't get your primer seated properly.</p></blockquote><p></p>
[QUOTE="fj40mojo, post: 462703, member: 19129"] Back your die out until you get full stroke with your press then begin screwing the die in in small incriments while sizing a lubed case. If you hold your hand up behind the die/shellholder contact area and look to see if there is any visible light ie space between the shell holder and the sizer when you are at the bottom of the stroke. You will feel the opperating mechanism "cam over", this is all the tolerance in the moving parts being taken up. If there still a sliver of light you can turn the die in a little more continueing with this process until you get zero gap between the two at full stroke on a case on it's first pass through the die. I reccomend you measure every time you make an adjustment. If at this point you are still only getting .001 bump then the die may need to have .001 turned off the bottom. Be careful, too much bump will generate an excessive headspace condition which will cause more problems. A .001 bump is probably OK but you may run into a chambering problem if your chamber is dirty or you don't get your primer seated properly. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
First time shoulder bumper
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