01-07-2023, 11:18 PM
Where is the datum measuring on your fired Brass?
I would guess your chamber is just fine,
Your dies on the other hand seem to be limiting you from adiquitly setting the shoulder back. This could be the dies or the shell holder, Though I expect the die is the issue at hand.
If we trust your measurements are accurate & honestly I am just a bit - skeptical not knowing the measuring tools or your comfort level using them, then your dies are resizing your brass at least .005" long. for an AR rifle IMHO. Zero clearance is unacceptable in any rifle IMHO. Personally in an AR I think Id be targeting about .004" to .005" clearance for your headspace.
So Id be hoping for .005 difference between your fired brass & the resized brass. of course you want the resized brass to be shorter.
https://6mmarc.com/showthread.php?tid=195
I would guess your chamber is just fine,
Your dies on the other hand seem to be limiting you from adiquitly setting the shoulder back. This could be the dies or the shell holder, Though I expect the die is the issue at hand.
If we trust your measurements are accurate & honestly I am just a bit - skeptical not knowing the measuring tools or your comfort level using them, then your dies are resizing your brass at least .005" long. for an AR rifle IMHO. Zero clearance is unacceptable in any rifle IMHO. Personally in an AR I think Id be targeting about .004" to .005" clearance for your headspace.
So Id be hoping for .005 difference between your fired brass & the resized brass. of course you want the resized brass to be shorter.
https://6mmarc.com/showthread.php?tid=195