40 S&W to 10 mm
This is a discussion on 40 S&W to 10 mm within the Reloading forums, part of the Defensive Ammunition & Ballistics category; I have dedicated reloading presses for various calibers. I acquired a Ruger GP 100 Match Champion 10 mm 6 shot. I have one press for ...
Post By Chuck R.
Post By noylj
November 25th, 2019 10:16 AM
40 S&W to 10 mm
I have dedicated reloading presses for various calibers. I acquired a Ruger GP 100 Match Champion 10 mm 6 shot. I have one press for 40 S&W.
The dies are identical. So apart from changing the type of pistol primer and powder and adjusting the dies for resizing, I should be good to go, right?
I have dedicated progressives for 9 mm, 40 S&W , 357 Magnum, 45 ACP, and a 44 Magnum.
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November 25th, 2019 12:32 PM
You're going to have to relook your OAL and the amount of taper crimp your using due to the difference in OAL between .40 and 10mm.
When I swap between .38SPCL-.357 and .44SPCL and .44MAG I use spacers under my belling (Powder die in Dillon speak), seating, and crimp dies to compensate. It saves a chitload of time adjusting dies.
See IF something like this is available:
Here's a decent article on .40-10mm:
December 10th, 2019 12:25 AM
For the cost, I would buy a die set dedicated to 10mm so I wouldn't have to re-adjust dies.
If you have a case feeder, that longer cases might require a part swap.
You'll need to adjust the powder die (up or down), the seating stem (up or down), and the crimp die (up or down). Not a big deal, but it is easier to me to simply have already adjusted dies for each cartridge.
This is one reason why I love die bushings or tool heads...