There is Fox sterlingworth fourm and a Double Shotgun forum. You might serrch for them and ask there

https://www.doublegunshop.com/dgsnos3.htm

https://doublegunshop.com/forums/ubbthreads.php

Last edited by saddlesore; 09/24/21.
If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles