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Old 01-19-2012, 12:32   #1
cablecutter
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10mm magnum case strength

Is the the 10mm magnum case any stronger than the 10mm? I know the .40 is stronger than the 10mm but I was thinking what if you trim the case down of a 10mm magnum to a 10mm for some real nuclear loads. Could this be done?


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Old 01-19-2012, 14:23   #2
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Might need to call Starline Brass.
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Old 01-19-2012, 14:27   #3
_The_Shadow
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What you need to consider is that the web of the 10mm Mag if different from the 10mm can cause excessive pressures as it occupies powder space. I am not familure enough with the 10mm mag cases to advise if it is thicker than the 10mm.

The 40S&W case is the small primer making the small difference in the web but I have seen more 40's blown out than 10mm!

If you live in the real world of safety, you will live within the design of the 10mm cartridge. Therefore if you push it will push back!
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Old 01-21-2012, 19:19   #4
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Pretty much what the Shadow said. The 10mm is a fine cartridge the way it is - good support in the barrel is what you should be looking for.

Cover that and you can build loads right up there to the .41 magnum range.
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Old 03-21-2014, 22:54   #5
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I have been using starline 10mm mag brass. for allmost a year. with no probs what so ever i couldnt find any 10mm brass last year when everthing went crazzy and ive loaded the same. Loads i even have went well over spec' s the only psi signs ive seen is with primers no case bulge at all i like them because most other brass is not. .992 there from.. 984 & up i have lone wolf 6.61" barrel the brass works great for me the only thing is u need a cut off wheel its lot of work on a case trimer i used a arrow cutted that i had worked good if you do use them just start. .5 grains lower and work them up like any loading data no gun is the same
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Old 03-23-2014, 01:24   #6
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Quote:
Originally Posted by _The_Shadow View Post
What you need to consider is that the web of the 10mm Mag if different from the 10mm can cause excessive pressures as it occupies powder space. I am not familure enough with the 10mm mag cases to advise if it is thicker than the 10mm.

The 40S&W case is the small primer making the small difference in the web but I have seen more 40's blown out than 10mm!

If you live in the real world of safety, you will live within the design of the 10mm cartridge. Therefore if you push it will push back!
^ this
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Old 03-23-2014, 01:25   #7
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Quote:
Originally Posted by dannyyates View Post
I have been using starline 10mm mag brass. for allmost a year. with no probs what so ever i couldnt find any 10mm brass last year when everthing went crazzy and ive loaded the same. Loads i even have went well over spec' s the only psi signs ive seen is with primers no case bulge at all i like them because most other brass is not. .992 there from.. 984 & up i have lone wolf 6.61" barrel the brass works great for me the only thing is u need a cut off wheel its lot of work on a case trimer i used a arrow cutted that i had worked good if you do use them just start. .5 grains lower and work them up like any loading data no gun is the same
Interesting nonetheless

Be safe !
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