Most all the WCC 9mm brass I've been looking at lately, going thru my big box of old collected brass, had a very sharp edge on the primer pocket opening. I'm not any kind of expert, but all three WCC in your picture appear to have a slight bevel around the opening, unless it is an artifact of the picture or my bad eyes. Edited Decemby GuestĪre you referring to the 03 or 05 (or both?) of the WCC cases? What particularly about them that I should be looking out for? I'm wanting to make this stuff dependable, so even though it's just for plinking, I could count on it if I really had to. I'm trying out the Lee with 9mm before I commit to a. I guess I'll go ahead and tumble them in the Walnut media and get them ready, even though I have no. One guy that runs a reloading store said "no, you only need to trim every 5 or 6 firings" and another said every 2-3. I guess this means by the time they are full-length resized, they are going to need trimmed.
223 brass that is dirty in the mail today. Some of it may be new oxidization that starts happening as soon as you pull it out of the cleaning media? No worry about a little black on the fingers. But even though they are real shiny with no grit, I get some black on my fingers after handling a bunch of cartridges. I've been getting new-shiny from walnut, followed by a second run of corncob + flitz tumbler additive. I've also read the theory that fine grit might prematurely wear dies after thousands of rounds, dunno.
#Wcc 9mm brass free#
Unless you are obsessive about ultra-shiny, the main thing is to have brass free of grit, which can scratch the dies and cause them to mark all your cases. Just talking about what I've been trying to figure out. The pockets don't look too dirty to prime good to me. Maybe that is a sign of something that has been intentionally crimped to some degree in the factory loading, or just a manufacturing artifact. The primer enters the rounded area then slightly hangs on the little sharp ledge below the rounded opening. I think that is why those want to seat with a "bump". I've seen some like many of the Win I've been working on, that had a nice rounded edge, but then there is a tiny sharp-edged shelf right below the radius. Most of the cases are manufactured with a slight rounding on the opening. I didn't start looking at cases closely til a couple of weeks ago when I was trying to figure out why some of them were difficult to prime. It doesn't need hardly any chamfer at all, but if the opening is very square-shaped sometimes the primers are hard to start in the hole, especially if the hole is a little tight. My eye isn't good and it is easier to see with a magnifying glass or jewelers loupe. Most of the WCC I've been working on need some chamfering for smooth priming. Maybe those have already been chamfered if they were not manufactured that way. The questionable cases might be the two WCC in the second row. Most of those cases appear to be radiused or chamfered, as far as I can see in your picture.
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