NEW BRASS PREP

[SPUTTER]

I just received some new brass unprimed 45 acp from remington, question-should I run the brass thru the tumbler to get rid of any oil residue that is still on them? I noticed that when I charged a few pieces with powder and then checked the weight of the load on a scale that I had powder still stuck inside.

Thanks

 

[warthog]

I do, I run all new brass through the tumbler for a little while to remove the oils they use to make it.

 

[red_zr24x4]

I would treat it as once fired, tumble, size, prime, load

 

[BE Mike]

I like to tumble new .45 ACP brass. I have also found, that although I use carbide dies, I use case lube the first time I load them. It really eases the sizing operation.