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Rifles, Reloading, Optics, Equipment
Reloading
meplate uniforming
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<blockquote data-quote="Andy D" data-source="post: 114155" data-attributes="member: 4919"><p>How do you properly measue bearing surface area? Is it the same as base to ogive length using a comparator and a set of calipers? I'm trying to improve my consistency with the 300gr SMK @ 800-1200 yards I seem to have sporatic high "flyers" as much as a foot at around 1000 yrds. Also, goodgrouper, I thought I might ask you, I'm having trouble with run-out on my loaded 338 rum rounds. I've tried </p><p>squaring the die, the expander ball(I have not bought a set of bushing dies yet as I may get a different 338). I've tried different shell holders(loose and snug), sharp angle- chamfering, 2 sets of dies (hornady and RCBS) and case neck turning. I know that the Rem. brass I'm using is bad but i've neving had this much trouble getting straight ammo. Out of 50 rounds I'll get 15 rounds @ +/- .001, 15 round @ +/- .003 and the rest vary up to .008! Is this normal with Rem brass, or is the long 300 SMK a tough bullet to seat straight. I realize that my dies put me at a disadvantage but I've used non-redding standard dies before that are set up properly and gave got reasonable results. Does a guy have to buy 300 rounds of REM. brass to get 100 good ones? Any advice or ideas would be very valued as I'm ready to toss my dies and brass in the garbage.</p><p></p><p>andy</p></blockquote><p></p>
[QUOTE="Andy D, post: 114155, member: 4919"] How do you properly measue bearing surface area? Is it the same as base to ogive length using a comparator and a set of calipers? I'm trying to improve my consistency with the 300gr SMK @ 800-1200 yards I seem to have sporatic high "flyers" as much as a foot at around 1000 yrds. Also, goodgrouper, I thought I might ask you, I'm having trouble with run-out on my loaded 338 rum rounds. I've tried squaring the die, the expander ball(I have not bought a set of bushing dies yet as I may get a different 338). I've tried different shell holders(loose and snug), sharp angle- chamfering, 2 sets of dies (hornady and RCBS) and case neck turning. I know that the Rem. brass I'm using is bad but i've neving had this much trouble getting straight ammo. Out of 50 rounds I'll get 15 rounds @ +/- .001, 15 round @ +/- .003 and the rest vary up to .008! Is this normal with Rem brass, or is the long 300 SMK a tough bullet to seat straight. I realize that my dies put me at a disadvantage but I've used non-redding standard dies before that are set up properly and gave got reasonable results. Does a guy have to buy 300 rounds of REM. brass to get 100 good ones? Any advice or ideas would be very valued as I'm ready to toss my dies and brass in the garbage. andy [/QUOTE]
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