1/4 turn of the dies= how many thousandths?

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I put laundry marker lines on my dies as they get 'close'. I then just add or subtract a little to adjust from a known point.
 
Yahhh...far as I understand, one does well to Load in deference for the actual particulars of the Arm in question, in all details.

OAL can vary a little, of course, with Bullet Type, and or what one has in mind.

Crimp, when called for, will be according to the Case as itself, as it actually is for length or as one has trimmed one's Cases for uniform length, lets hope!...with Dies adjusted in deference to that.


Thread Count of Dies, or what a turn or part of a Turn will mean in Thousanths, fun to refresh dusty-for-me anyway math skills with, but, is mox nix or no more than incidental to how one acheives the results one is after...which for many of the features of the finished Cartridge, will be impirically arrived at by patient experiment, checking things, and seeing how it fits the Arm.

Older Presses often had proprietary Thread too, Star, Hollywood, Ideal or Lyman 310 Dies and Presses, etc, their Dies were not the same Threads as most have now.
 
JimKirk said:
you have to adjust the dies to fit YOUR rifle. That is why a gauge is really no better than a someone else's chamber. It has to fit YOUR chamber! As reasonible as dies are, have a set of dies for each rifle then you don't have to change the settings.

I reload for four rifles in .308 and have found Redding's Competition Shellholder sets to be invaluable for the resizing process and cheaper than buying a resizing die for each. Simply set up the resizing die with the +0.010" shellholder on the ram ensuring firm contact between the die and the shellholder (very important). This is the minimum amount of resizing. You can increase the headspace in 0.002" steps by simply switching shellholders and without adjusting the sizing die. Nice tool and well worth the money particularly if you're loading for multiple rifles chambered for the same cartridge.

redding_shellholder2.jpg


:)
 
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