Thread: ADI book max’s

Originally Posted by grandpamac

Greetings again,
That is impressive velocity, much more than I would have expected. To be on the safe side you may wish to do a little test. Take two of your cases fired with that load and load and fire them ,with the same load, two more times. If the cases will still hold a primer after that then the load should be fine. If not then a re think is needed. A friend developed a cracking good load for one of his rifles. Great velocity, wonderful accuracy and no signs of pressure. Life was good. Unfortunately none of his new cases could be reprimed due to loose pockets. Rifles have been blown up with loads that showed no signs of excess pressure, one of the reasons I tend to use velocity as an indicator of pressure.
Regards Grandpamac.

The rifle blowups I'm aware of have all been the result of either using the wrong powder accidentally, or an obstructed bore.

How do we really define "safe" ?

A Tikka T3 action (as here) with .223 surely must have a huge safety margin of action strength, well in excess of where the brass will fail.

The real risk here would be risking a case failure (which is hazardous in itself - especially in a T3 with the plastic bolt shroud which fragments in this event) if reloading these cases multiple times, or simply that your brass will be more or less single-use.