I also have the 4.5" XDM. I put a 22 pound Wolff spring in it, and it seems to have tamed the slide quite a bit. It can still shoot light loads, but the maxed out loads don't send the brass into the next state any more. It still tosses it a ways, but not like before.

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Quote from: jtracy1223 on January 30 2019 03:46:14 PM MST
Is anyone using the wolff firing pin spring that comes with the recoil spring or just sticking with the factory fps?

I used the Wolff spring. I don't know if there's a difference though. It seems to work just fine.

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I tried out the new 22 lb Wolf spring, and it works pretty well. My gun is the 4.5" version of the XDM.

175gr lead at 966 FPS - most cases landed in a pile 2-3 feet away. I only fired 15 rounds, but they all cycled. I can't guarantee that light ammo like this will be 100% reliable, but I saw no signs of the gun struggling to run it.

175gr lead at 1070 FPS - the cases landed around 9 feet away, and were scattered around.

175gr lead at 1185 FPS - the cases landed around 14 feet away.

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Quote from: jtracy1223 on January 24 2019 10:22:06 AM MST
Ordered a 22 lb spring on monday. With any luck i will have it by this weekend and be able to try it out.

Bought one of those and got it today. I've got some light loads and some heavy loads to try it out with. If it runs the light stuff and doesn't throw brass from the heavy stuff into the next county, I'll be happy.

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Howdy

I'd be interested in finding this out too. Mine chunks brass pretty high and far. It lobs them over my brass catcher and into the next county. It's more of an annoyance than anything, but I hate losing brass.

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