How short is too short?


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rus55ros
November 16, 2008, 05:24 PM
I know that cases such as 40 S & W seem to shrink in length the more times they are shot and re-loaded. I can find max. length for cases, but how short can I use and still be safe?

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nwb01
November 16, 2008, 05:50 PM
0.850in is the case max length

I have loaded thousands of 40's for IDPA/USPSA competitions. I have never measured the case length, only concerned with OAL.

Also, I have not experienced cases getting shorter over time, they usually grow not shrink.

Steve C
November 16, 2008, 06:08 PM
Never had a case go bad from getting too short. They get thrown away once they crack or the primer pocket gets too loose.

I quit trimming pistol cases years mostly .45 acp ago after finding out they didn't grow in length.

Walkalong
November 16, 2008, 07:05 PM
Never trimmed an auto pistol case, never had a problem.

The Bushmaster
November 16, 2008, 08:58 PM
How short is too short?

When the firing pin can't reach the primer...

They will stop shrinking long before that or you will loose the first.

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