James,
Some of the GSR folks are members. Earl is. The GSR did not have a shooting focus. Then a bunch of shooters joined who liked to shoot, hunt and misbehave; and we broadened the focus of the club to include rendezvous, reenacting, historical trekking, shooting and hunting.
There are a lot of good people in the club and it has a very active program.
Best Regards,
John Cholin