Wierd primer

[Zero333]

but you are making assumptions, with no actual knowledge
my numbers are based on ACTUAL TEST.

That was just a guesstimate to show how COAL directly affects pressure. Especially in pistol cartridges.

 

[DACthebiker]

Ok. I reduced the powder charge by .5gr. Also seated a little deeper and reduced the crimp. Much better results. Thanks guys for all the help! A teacher is a shortcut to learning and you guys knocked it out the park. As for measuring pressure, how do you do that with live ammo?

 

[DACthebiker]

What purpose are you loading this ammo for? Unique is not a powder I would necessarily choose for 9mm.

Mostly as a cheaper alternative to premium HP ammo. 80 cents a round vs. 20 cents a round. I use unique for my .45acp and i liked it so i figured it would do ok for 9mm too.