^Well, CAS is what you make it. I agree, all guns from the period should be able to be shot and I have a lot of problems the way typical SASS competitions are.
SASS is more about the competition and less about the time period itself.
NCOWS is more strict when it comes to the authenticity, but they're much smaller, so I haven't shot one of their competitions, yet. But I do think they have the same firearm requirements. At least I don't have to worry about competing against a guy dressed like Roy Rogers with a six gun in .357 Mag.
Since I'm more about the history aspect, I'm a little bit more about authenticity.
But I will admit that it is nice to be able to shoot your guns in a combat style setting, which is what SASS has provided for me. I'm actually not even a member of it or any other CAS organization. I just go as a walk-in competitor. lol
I'm surprised I've never heard of GAF, but it looks awesome. Would definitely be interested in that. So its more based strictly towards the American military of the 19th century?
Love the Springfield Trapdoor, btw, and the .45-70 cartridge.
Do you do any other types of reenacting? Typically, I do French and Indian War and Texas Revolution, but I've also done Civil War as well. A lot of my gear is also conducive with the War of 1812 and the Mexican American war.
Figure since you posted a vid, I'll post some pics
Can't remember if I've posted these here or not: