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It just occurred to me that this might be possible.
However the case dimensions are slightly different
10mm Auto:
.40 S&W
Which surprised me a bit. Will an appropriately shortened 10mm Auto case fit into a .40 S&W chamber?
I am given to understand that the 10mm case has a stronger web, and shortened it would have less case capacity than a .40 S&W case.
However the case dimensions are slightly different
10mm Auto:
![800px-10_mm_Auto.jpg 800px-10_mm_Auto.jpg](https://data.northwestfirearms.com/attachments/1272/1272995-eed9acbe4d8dad195b7a0c5987977679.jpg)
.40 S&W
![800px-40_S%26W_Scale_Drawing.svg.png 800px-40_S%26W_Scale_Drawing.svg.png](https://data.northwestfirearms.com/attachments/1272/1272996-7fc9ad234078e7b46766f55f22e6d70f.jpg)
Which surprised me a bit. Will an appropriately shortened 10mm Auto case fit into a .40 S&W chamber?
I am given to understand that the 10mm case has a stronger web, and shortened it would have less case capacity than a .40 S&W case.