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The Annoyed Man wrote:What's the bullet weight on those .40s of yours? I carry the 180 grain Hydro-Shoks in my USP Compact, and I've never seen a measureable setback after multiple cyclings. The 180s have a more truncated cone shape than the ones you've shown here in your OP. That's the only reason I haven't just shot the ammo and got more. And trying to find reasonably priced self defense ammo in .40 these days is harder than it needs to be.

Good point. The box for these rounds is long gone, so don't know grain weight details. But I do also have some of the 180-grain hyrdra-shocks with the more truncated cone shape. So these are obviously different. I have not had the 180-grains nearly as long, but so far have not noticed this problem with them.

BrianSW99 wrote:Since this is a .40S&W round, I would not recommend firing it. They are already fairly close to their max pressure and the additional setback could increase pressure to the point that a catastrophic failure could occur.

So what do I do with it? Is there a proper legal way to dispose of it?

This is one of the issues I knew very little about until reading it about it online. I have searched the forum and read some other threads. Still not totally sure I understand it, so posting this photo and some questions regarding bullet setback.

These (photo below) are .40 S&W Federal HydraShocks from one of my Glock 23 mags. I have three mags full of these, but some are older than others. I'm honestly not sure how old this batch of ammo is, (yeah, yeah, I know - need to replace once a year). I bought a new box within the last year, but think these may be some holdovers I've had for a few years. The round on the left in photo caused me concern. The cartridge on the right appears to be from the same "batch" of ammo and is closer to what these rounds should look like.

Anyway, this seems to obviously be an example of setback. So my question is .... what do I do with this round? If I shoot it am I guaranteed a catastrophe? If I don't shoot it how/where do I properly/legally dispose of it?