FC brass is not looser to begin with.
But primers do vary in diameter. WSP seems loose in a FC case. That does not mean the FC case is loose or that it loosens easily.
I find that brass and primers like one another, meaning FC likes FC and Win likes WSP. Mixing and matching often results in ignorant comments. Using mixed brass further reinforces my point.
I have approximately 100K 9mm cases. U name it, I have it. I have different generations of stuff. I have the whole evolution of the FC 9mm case. I have the original, the FCdot, the dotFCdot, and the post-dotFCdot non-dot. I can even talk about the different casehead diameters over the years.
You're wrong.
But primers do vary in diameter. WSP seems loose in a FC case. That does not mean the FC case is loose or that it loosens easily.
I find that brass and primers like one another, meaning FC likes FC and Win likes WSP. Mixing and matching often results in ignorant comments. Using mixed brass further reinforces my point.
I have approximately 100K 9mm cases. U name it, I have it. I have different generations of stuff. I have the whole evolution of the FC 9mm case. I have the original, the FCdot, the dotFCdot, and the post-dotFCdot non-dot. I can even talk about the different casehead diameters over the years.
You're wrong.