Safe Ammo for security six

caryg said:
Have an older 150 series six and wondering what is the safe limit for 357 mag in these.

Here's the old manual. It's pretty general but says stay with industry standard. See page 4:

https://ruger-docs.s3.amazonaws.com/_manuals/securitySix.pdf
 
You should have no issues so long as you stay with factory loads and levels. It is a solid revolver and will last for years.
 
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