ORIGINAL: sauer06
Please excuse my ignorance but what is run out? I take it that this is not a good thing. also I take it that these Lee collet dies are for the neck only? And third a buddy of mine gave me some 30.06 once fired brass from his Girard (spelling) Since this was not fired from my gun do I have to full size it? Thx for all of your help
First thing runout is basically the concentricity of the ammo. Or how staight is your ammo. If you roll your cartridge on a mirror, can you see a bullet wobble? You can measure this with a dial indicator or gauge. But you can easily see runout greater than .007" rolling on a mirror.
Second, Lee makes a collet die, and about the only good thing they make. Basically it supports the case and will neck size referencing the inside of your case mouth, not the outside. So when you seat a bullet, it should be straight.
Lastly, anytime, I mean anytime you reload a case fired in another gun, it has to be FL Sized all the way again. Then after that, you can neck size after its been fire formed in yoru rifle only.