Originally Posted by Overkill0084
.40 S&W runs at a pretty high pressure, and it has a dubious history where case failures are concerned. Always err on the side of safety.
[QUOTE=robocop10mm;1015960]I do not sweat the minor dings. They either iron out from resizing or from the pressures of firing. Scratches are often from getting kicked around on the range.
Really dark stuff was likely left on alkaline soil for a while. I tend to batch those together to be shot in a situation where I am unlikely to find them anyway (tall grass).
I have heard a soaking in Vinegar water will correct this, I have not tried it yet.
[QUOTE=genesis;1016039]I reload for the 40 S&W (among others). One thing to watch for (and it was mentioned above) is a bulge just forward of the rim. This is a "Glock'd" case. I.E, it's been fired in a Glock.
Last first--Glock'd cases are not limited to Glocks.
Overkill is absolutely right, the 40 S&W has had some issues due to the pressures. It's a bored out 9mm, so due diligence is required.
Robocop has a real good idea about the tarnished cases and high grass, it's just that I can't say ahead of time when that happens for me. BTW the vinegar works to some degree, stainless media in a tumbler works best.
Nickle cases may not last as long as regular yellow brass. The plating flakes off and the edges can then scratch die (non-carbide), or the plating can corrode and you then have freckles. Cleans up better and to some is prettier.