Home Forums Hunting & Shooting Handguns 40 S&W In The 10mm

I tried shooting the 40 S&W ammo in my 10mm XDM-ELITE today. Fired and functioned as it should. The 40 S&W 180 Remington factory load at an advertised 990 FPS shot a bit high at 20 yards.

I will chronograph this ammo tomorrow to check the velocity

I have run several mags of .40 S&W though my Glock 20 without a hiccup. Not for any particular reason, just to see if it would work.

Do it all the time…in my 610 Classic.

Never felt the need to fire it in a 10mm auto pistol, since I have pistols in both. Would be interested in the numbers you post though. 😎

It's nice to be able to do in a pinch but it's not something you'd want to do over hundreds of rounds. It's putting a lot of extra strain on the extractor using it to maintain headspace.

Falls into the category of can but probably shouldn't.

That’s my position on this use also

Yes......

I chronographed 1 round of 40 S&W 180 grain jacketed flat point and recorded 983.6 FPS

I'm not sure if anyone makes a conversion barrel for the XDM Elite but when I use a 10mm to 40 S&W conversion barrel in a G20. Nice to have the cheaper ammo option.

The XDM-ELITE fires and functions as it should with both 10mm and the 40 S&W

Good to know.

I have both 40 & 10mm pistols

Hand load both

Can't see the reason to run 40's in a 10mm.....for me anyhow

Although I have much more 40 ammo loaded

[quote=tikkanut]

Can't see the reason to run 40's in a 10mm.....for me anyhow



]/quote]


No reason not to

As does the G20.

Have shot tons of 40 through a Delta, Camp Guard, Glock 20 and 40.
How does it affect the extractor? The case, just like a 10 case stays at the slide until impacted by the ejector?
Even if your shooting 10 mm reloads, using a taper crimp the round is not necessarily chambering at the case mouth.

It works with my Glock 20, also. However, even though that's the case, I purchased a .40 S&W barrel for it, anyway. Using the 10mm barrel to fire .40 S&W may apply excess stress on the extractor.

Have recently got a GP Match Champion. Will be putting a few 40s in moon clips for fun. Just because.

Is the 40 generating higher pressures in a shorter time, requiring the extractor to "pull harder"?

The difference would be that when the slide slams forward to a stop, the extractor has to stop the inertia of the loaded round. One might logically expect that to accelerate wear on the extractor, but I don't know if it's that big a deal.

As for the above clame of the 10mm rounds not necessarily chambering on the case mouth..... all of my reloads will do exactly that. It's easy to ensure.

I don't and won't use the 40 in anything unless I have to, so I'm not testing it.

Edit: Good Lord. "Clame"? Sheesh - claim. How the heck did that happen?

Thanks I never thought of that. I only dropped test match rounds for auto in IPSC, stopped doing that after shooting 200,000 rds

Better buy some better clips than the ones that came with the gun.