10 mm/ 40


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dat2
April 9, 2009, 02:23 PM
I was just given a set of 10 mm dies, I don't have a 10 mm but I do have a 40, will the 10 work for loading 40. the dies just say "10 mm". and I've seen some that will say "10 mm/ 40 cal"

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rcmodel
April 9, 2009, 02:41 PM
The sizer die will work for sure.

The deprimer / expander die should.

The seater die may be too long for the .40 S&W to be able to taper crimp them.

Only way to know for sure is to try it.

If you have the ability & equipment, you can grind .142" off the bottom of the 10mm seating die, and it will be a .40 S&W seating die.

rc

dat2
April 9, 2009, 04:39 PM
thanks, I'm gponna try, IF I can find some 40 cal bullets around here somewhere

loadedround
April 9, 2009, 04:56 PM
Ditto on above. I load both with my Dillon carbide dies. :)

dat2
April 15, 2009, 02:30 PM
it won't crimp, I finally tried it, all works well except the case is .142" on the short side to get any kind of a crimp

ReloaderFred
April 15, 2009, 03:50 PM
You can buy a separate crimping die and use the rest of the die set. Look for used dies on the various auction sites or post a "wanted" ad in the Buy, Sell & Trade section of this forum.

Hope this helps.

Fred

Jimfern
April 15, 2009, 06:22 PM
I have RCBS dies that came out before 40 S&W and are marked 10 MM. They work fine for loading 40 S&W.

dat2
April 15, 2009, 06:53 PM
I'll have to try it again then, I couldn't get a crimp, but I was in a hurry when I tried it

JWJacobVT
April 15, 2009, 07:02 PM
Keep in mind it is only a taper crimp

loadedround
April 16, 2009, 09:51 AM
I have to stand corrected. I did have to buy a crmp die to use with my 10mm Dillon dies. The Dillon crimp die would not work on the 40 S&W cases. Sorry guys. :confused:

dat2
April 16, 2009, 12:20 PM
yep I tried again last night, and put a little extra bell on to start with, No crimp , it didn't even try to start a crimp. I'm on the lookout for a crimping die now

tlen
April 16, 2009, 04:17 PM
My RCBS .40S&W/10mm dies load both. I setup for .40S&W then use ~.142" spaces/shims for 10mm.

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