[wildcatjohn]

I recently purchased a used Investarms percussion Hawken-style muzzleloader. I tried to take it apart to clean it, but am having trouble figuring what needs to be done to get the barrel detached. I've detached the screws that look like they'd be the ones holding it in, but no luck. Any suggestions? Also, I know most of these guns are 1:48 twist, but obviously, I don't have the manual for this one. Anyone know where I can find this info for sure? Or, alternatively, if for some reason should this gun have a slower twist, will any actual damage occur if I shoot sabots out of it instead of patched balls?

Thanks