W-W 9mm Brass Behaves Itself Now

[CZ93X62]

I had an ammo-making interlude with emptied WWB 9mm casings last night. I expected the worst from past history with these evil yellow metal monsters, but that didn't happen at all. Instead, WSP primers seated normally and properly like they do in Starline and R-P brass. A pleasant surprise.

 

[Cherokee]

My experience with WW with WSP is the same, but WW brass, for me, does not accept CCI SP as easily.

 

[Hawk]

I have never had problems with WW brass and WW SPP.

 

[JonB]

I'm not sure what it is about factory WIN 45acp (slightly corrosive powder or primers?), but when I find it at the range, if it's been rainy or dewy, WIN will corrode before other brands.

I've never had trouble with WIN 9mm.

 

[Tomme boy]

All the Win 9mm brass I seem to find has crimped primers. So I sort them out to be processed separately.

 

[Winelover]

Only primer I use is the CCI SP..............no issues with 9 mm WW brass. Although, I much prefer Federal or CCI Blazer, when I have my druthers.

 

[CZ93X62]

Tomme--

The recalcitrant W-W brass from the past was snagged as once-fired from my old agency's range sites. Perhaps LE ammo is crimped, though I couldn't see or feel evidence of a crimp. It just flatly wouldn't accept ANY small pistol primer--CCI, W-W, or Federal. And no amount of force on their primer pockets with the RCBS Primer Pocket Swage helped a bit.

 

[358156 hp]

A lot of LEO brass is crimped, a lot depends on the original contract specs. I buy 9mm brass is 3-5000 round lots of once-fired brass, generally from LEO ranges. I rarely encounter crimped 9mm brass anymore, but I see it for sale often enough for sale. In my area, Winchester SPP are the most commonly found, and I buy quite a lot of them as well. I can't recall ever having any issues with Winchester primers, and I don't hesitate to buy them when available.

 

[Petrol & Powder]

I concur that Winchester 9mm brass can be a bit difficult at times. I also concur that some pistol casings have crimped primers.
I run into it with 9mm casings occasionally, more in some batches than others. The crimp used isn't the traditional point crimp as seen on military rifle brass but rather a more subtle circular crimp that is difficult to detect prior to your attempt to seat the primer. It is a compressed ring around the primer pocket and it's difficult to detect prior to attempting to seat a primer.

9mm brass is so plentiful that when I encounter a problem child I just discard it. It's not worth the effort to attempt to remove the crimp.
One of the advantages of the manual indexing on a Dillon 550 is that when you run into a problem like this, you can discard the problem casing, advance the shell plate, check the casing that received the powder charge and carry on with an empty position in the shell plate.

 

[Winelover]

I purchase thousands of 9 mm, once fired range brass, to feed my half dozen nines. Separate all by HS. Usually, the only time I run into crimped primers is with the odd pieces of military and or foreign brass. (WCC, CBC, PPU, GFL, some S&B) which is the circular crimp like P&P described. Takes a few seconds, remove it with my RCBS chamfer tool, chucked in a cordless drill.

Last purchase, I fell into 3000 pieces of once fired Blazer brass.............my preferred brass.