HWL
AH elite
Going out on a limb here...
Is it a 458SOCOM?
The .45 Blaser cartridge is one of the forgotten heroes.
It is (was) a German attempt to create a subsonic sniper cartridge.
It is said, development was initiated by the German Ministry of the Interior.
But finally, Germans decided velvet gloves are better than subsonic cartriges for dealing with criminals, and the concept was droped.
Blaser piced up the idea, and offered the supersonic version as a hunting castridge in its R93 straight pull rifle.
Worked great again, like a full house .45-70 Government, but was not a commercial success...... and was discontinued again.
Cases are still available from "shm Sueddeutsche Huelsenmanufaktur"
Sorry for hijacking the thread....
HWL
. I don't know why you would change the bottom metal as I like it how it is, that is just me. The actions are cheap over there you would not get an P14 or M17 action that cheap here but still way cheaper than a CZ550 action.