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The Range
Ammo & Reloading
setting shoulders back
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<blockquote data-quote="swampratt" data-source="post: 2349131" data-attributes="member: 15054"><p>Ok so now i got a precise measurement of my fired case.</p><p>with tool installed over the top of the neck my overall length was 2.2535" of the fired round</p><p>I sized the case in my lee FLS die with the die 1/2 turn out from touching the shell holder.</p><p></p><p>The length is now 2.257" it actually grew longer!!!</p><p></p><p>OK so now i go 1/4 turn from touching..the measurement is now</p><p>2.2575" just a bit longer..and that length is the same as 1/8 turn out from touching the shell holder...</p><p></p><p>Now i seat the die to just touch the shell holder. 2.256"</p><p></p><p>Now i twist it in a 1/4 turn more after touching the shell holder.. 2.245" OAL</p><p>1/2 turn in produces the same.</p><p></p><p>SO</p><p>Fired case: 2.2535"</p><p>1/2 turn out 2.257"</p><p>1/4 & 1/8 turn out. 2.2575"</p><p>Touching is 2.256"</p><p>1/4 & 1/2 turn in 2.245"</p><p>So that bumped my shoulder back .0085"</p><p></p><p>I also looked at the shell holder die interface area when sizing cases...</p><p>Just because the shell holder touches the die without a case in it does not mean it will touch with the case in it.</p><p></p><p>Mine had a gap...due to the flex of the press..no i measured press flex while sizing .001"</p><p>Then i measured the gap with the ram all the way up with case in shell holder under pressure and i have .014" as measured with feeler gauges...</p><p>It is the die and press threads that give the clearance</p><p>I assume...even with the nut tightened all the way down</p><p>I still get airspace between die and shell holder.</p><p></p><p>I will find that happy medium point where the shoulder is not bumped back any and possibly have longer case life.</p><p></p><p>Sorry so long winded!!!!!!!!!!!!!!!!!</p><p>Fun with ammo.</p></blockquote><p></p>
[QUOTE="swampratt, post: 2349131, member: 15054"] Ok so now i got a precise measurement of my fired case. with tool installed over the top of the neck my overall length was 2.2535" of the fired round I sized the case in my lee FLS die with the die 1/2 turn out from touching the shell holder. The length is now 2.257" it actually grew longer!!! OK so now i go 1/4 turn from touching..the measurement is now 2.2575" just a bit longer..and that length is the same as 1/8 turn out from touching the shell holder... Now i seat the die to just touch the shell holder. 2.256" Now i twist it in a 1/4 turn more after touching the shell holder.. 2.245" OAL 1/2 turn in produces the same. SO Fired case: 2.2535" 1/2 turn out 2.257" 1/4 & 1/8 turn out. 2.2575" Touching is 2.256" 1/4 & 1/2 turn in 2.245" So that bumped my shoulder back .0085" I also looked at the shell holder die interface area when sizing cases... Just because the shell holder touches the die without a case in it does not mean it will touch with the case in it. Mine had a gap...due to the flex of the press..no i measured press flex while sizing .001" Then i measured the gap with the ram all the way up with case in shell holder under pressure and i have .014" as measured with feeler gauges... It is the die and press threads that give the clearance I assume...even with the nut tightened all the way down I still get airspace between die and shell holder. I will find that happy medium point where the shoulder is not bumped back any and possibly have longer case life. Sorry so long winded!!!!!!!!!!!!!!!!! Fun with ammo. [/QUOTE]
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