500 special

[GJW1911]

Hello all,
I had some 500 special cases given to me and would like to try to reload them, but I am unable to find any data. Would anyone here be able to point me in the right direction?
I have some 300gr speer GDHP bullets left from reloading the 50ae cartridge and would like to load them in the 500 special cases.

Also, as a side note, has anyone used the 300gr speer GDHP bullets in their 500 magnum?

Thanks in advance.
GJW1911

 

[Gun 4 Fun]

This is a link toBeart tooth Bullets sight- Load Swap.com.
This is a direct link to the Bowen 50 special which is the same basic thing-

http://www.loadswap.com/display.php?action=view_weight&cartridge_id=41&table=Handgun_Data
This is a link to Handloads.com-

50 Bowen Special Load Data - Handloads.Com=