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Rifles, Reloading, Optics, Equipment
Reloading
Upgrading Dies...Which ones?
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<blockquote data-quote="Bart B" data-source="post: 622685" data-attributes="member: 5302"><p>I wore out a .264 Win Mag barrel that shot the best match bullets available about 3/5 MOA at 600 and 4/5 MOA at 1000 using and old press that had some slop in it's ram fit to the frame. And sometimes it made "banana" cases. The chamber was a standard SAAMI spec one. Used a standard RCBS full length sizing die just screwed into the press for the right shoulder set back of about 3 thousandths. It's neck was lapped out to about 2 to 3 thousandths under a loaded round's neck diameter. A second body die was used to size just the body at the ridge right in front of the belt back down to new case diameters (same as what Larry Willis' collet die does these days). That ridge is norious for degrading accuracy. Never turned a case neck nor any other case prep process. Bullets were seated with the standard RCBS seating die and max bullet runout was between 3 and 4 thousandths. Such dies and processes produced ammo that didn't shoot any better than new cases.</p><p></p><p>Nowadays, the Redding or RCBS bushing full length sizing dies are popular for best accuracy with shoudler fired rifles in competition. And the Willis collet die does wonders for belted cases. Sierra Bullets test lab for accuracy uses Redding full bushing dies for cases they're made for; standard dies for the others. And if a sized case neck ain't straight with the case, no bullet seater will change it's angle any significant amount; bullets align with case necks so they had better be pretty straight.</p></blockquote><p></p>
[QUOTE="Bart B, post: 622685, member: 5302"] I wore out a .264 Win Mag barrel that shot the best match bullets available about 3/5 MOA at 600 and 4/5 MOA at 1000 using and old press that had some slop in it's ram fit to the frame. And sometimes it made "banana" cases. The chamber was a standard SAAMI spec one. Used a standard RCBS full length sizing die just screwed into the press for the right shoulder set back of about 3 thousandths. It's neck was lapped out to about 2 to 3 thousandths under a loaded round's neck diameter. A second body die was used to size just the body at the ridge right in front of the belt back down to new case diameters (same as what Larry Willis' collet die does these days). That ridge is norious for degrading accuracy. Never turned a case neck nor any other case prep process. Bullets were seated with the standard RCBS seating die and max bullet runout was between 3 and 4 thousandths. Such dies and processes produced ammo that didn't shoot any better than new cases. Nowadays, the Redding or RCBS bushing full length sizing dies are popular for best accuracy with shoudler fired rifles in competition. And the Willis collet die does wonders for belted cases. Sierra Bullets test lab for accuracy uses Redding full bushing dies for cases they're made for; standard dies for the others. And if a sized case neck ain't straight with the case, no bullet seater will change it's angle any significant amount; bullets align with case necks so they had better be pretty straight. [/QUOTE]
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Upgrading Dies...Which ones?
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