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Rifles, Reloading, Optics, Equipment
Reloading
Issue with Norma brass
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<blockquote data-quote="cohunt" data-source="post: 1439622" data-attributes="member: 94491"><p>*yes, load was re-worked so same velocity/accuracy was achieved with no pressure signs</p><p>*yes it is "plowing/shaving" the brass to the rear</p><p>*no, the chamber is not oversize that I can tell-- I measured my 1x fired norma brass and the multi fired PPU brass at the base just above the belt (before resizing) and both brands measure .5125- .5130" -max chamber is .5136 + .002" for saami per the print, so its not tight, but not oversized -- after resizing (with any of the 3 die sets) the PPU brass now measures .5110-.5115, but the Norma brass measures that same dimension before the lip, but on/after the lip it measures .516" just before the belt (over chamber diameter- which is why it wont completely chmber)</p><p>*yes the ridge/lip does go all the way around the case equally</p><p>*no I have not yet sectioned the brass as I have 5 times reloads on the PPU brass and have had no issues with those when sizing (no tell tale signs of case cracking/splitting near the belt), but I don't think it has excessive headspace issues as my OAL of fired cases to the datum line measures 2.12 to 2.125" and the saami print shows a chamber dim of 2.1253 +.0100" so not out of spec there either--also for reference the 1x fired neck measures .315" and the chamber print shows .316" as max so without a chamber cast, I'm pretty sure my chamber is within specs and not oversize</p><p></p><p>I don't really want to chamfer the die as all 3 dies (redding, hornady, and lee) do NOT do this to the PPU brass, but all 3 do it to the norma brass (which is why I think its a brass problem)</p><p></p><p>I did some googlefoo and did find 4 other time people were complaining of getting a ridge on their 7mag Norma brass, but it seems no one ever figured out the problem</p><p></p><p>at this time, my only thoughts were to try to do a light polish on the die internal (not sure what to use--maybe Flitz? or what about a fine bullet lapping paste?) and maybe try a few other lubes to see if that helped, if not then I may send the die back to redding to check it out, but I really don't think its a die problem and I don't want to damage the die internals</p><p></p><p>I was possibly thinking of using Larry's collet die to resize the belt area first, then the FL die, but he said he does not recommend using them that way</p></blockquote><p></p>
[QUOTE="cohunt, post: 1439622, member: 94491"] *yes, load was re-worked so same velocity/accuracy was achieved with no pressure signs *yes it is "plowing/shaving" the brass to the rear *no, the chamber is not oversize that I can tell-- I measured my 1x fired norma brass and the multi fired PPU brass at the base just above the belt (before resizing) and both brands measure .5125- .5130" -max chamber is .5136 + .002" for saami per the print, so its not tight, but not oversized -- after resizing (with any of the 3 die sets) the PPU brass now measures .5110-.5115, but the Norma brass measures that same dimension before the lip, but on/after the lip it measures .516" just before the belt (over chamber diameter- which is why it wont completely chmber) *yes the ridge/lip does go all the way around the case equally *no I have not yet sectioned the brass as I have 5 times reloads on the PPU brass and have had no issues with those when sizing (no tell tale signs of case cracking/splitting near the belt), but I don't think it has excessive headspace issues as my OAL of fired cases to the datum line measures 2.12 to 2.125" and the saami print shows a chamber dim of 2.1253 +.0100" so not out of spec there either--also for reference the 1x fired neck measures .315" and the chamber print shows .316" as max so without a chamber cast, I'm pretty sure my chamber is within specs and not oversize I don't really want to chamfer the die as all 3 dies (redding, hornady, and lee) do NOT do this to the PPU brass, but all 3 do it to the norma brass (which is why I think its a brass problem) I did some googlefoo and did find 4 other time people were complaining of getting a ridge on their 7mag Norma brass, but it seems no one ever figured out the problem at this time, my only thoughts were to try to do a light polish on the die internal (not sure what to use--maybe Flitz? or what about a fine bullet lapping paste?) and maybe try a few other lubes to see if that helped, if not then I may send the die back to redding to check it out, but I really don't think its a die problem and I don't want to damage the die internals I was possibly thinking of using Larry's collet die to resize the belt area first, then the FL die, but he said he does not recommend using them that way [/QUOTE]
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Issue with Norma brass
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