Hi guys!
Cartridge is .223 Rem
I have the Hornady OAL gauge. Been a really long time since I have used it, and I can't remember how the math works out. Here is what I have...
The Hornady modified case measures 1.458 at the shoulder datum line.
My sized brass measures 1.455 at the shoulder datum line.
Obviously this means my sized brass is .003 shorter.
I would like to be .010 off the lands with a particular bullet, and when I touch the lands using this bullet I get a reading of 1.886 when the bullet is inserted into the Hornady modified case. Conventional wisdom says that I could load a round at 1.876 and be .010 off, but what about the 3 thou difference in my brass and the Hornady case? Would I add it to, or subtract it from the 1.876 number?
I'm thinking add it, and seat the bullet to where it measures 1.879.
Am I right?
Thanks!
Cartridge is .223 Rem
I have the Hornady OAL gauge. Been a really long time since I have used it, and I can't remember how the math works out. Here is what I have...
The Hornady modified case measures 1.458 at the shoulder datum line.
My sized brass measures 1.455 at the shoulder datum line.
Obviously this means my sized brass is .003 shorter.
I would like to be .010 off the lands with a particular bullet, and when I touch the lands using this bullet I get a reading of 1.886 when the bullet is inserted into the Hornady modified case. Conventional wisdom says that I could load a round at 1.876 and be .010 off, but what about the 3 thou difference in my brass and the Hornady case? Would I add it to, or subtract it from the 1.876 number?
I'm thinking add it, and seat the bullet to where it measures 1.879.
Am I right?
Thanks!
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