Re: I can't post first.
The Judge appreciates Art's actions on JEB's behalf. The Judge is going to modify things slightly as he adjudicates.
First, JEB has an opponent directly in front of him as per the map, who fired upon JEB with a sawed-off shotgun (as per the narrative). That will be JEB's target. Second, as with all PCs using Full Attack to take two firing actions in one round, the second shot has a reduced modifier (all second attacks are done -5 BAB). The Judge will adjust based on those two facts.
In regard to reloading Art's Colt -- it takes 4 full rounds to accomplish that task, as per page 137. That video was interesting. Here is the Judge's takeaway and ruling, posted here to ensure fairness and understanding among all participants under the well-balanced rule system (at least in the Judge's estimation).
The video is 10 seconds long. That is effectively 2 full rounds of gameplay in this game, even if someon were an expert at the task, in ideal circumstances. So at minimum, that would establish that it takes at least two full rounds to replace a cylinder in the Colt. The person demonstrating did this at a table with the replacement cylinder close by and easy to pick up, not to mention the ability to set down the hogleg for a moment. And without any apparent distractions (such as being in combat). In a combat situation, for which the reloading rules are designed, it seems plenty fair to say that extra time beyond that video demonstration would be required (continuing to defend use one's dexterity in defense, reaching into a pocket to drop the old cylinder and replace the new cylinder, etc.).
The Judge stands by the rules, as he has for other PCs attempting to reload their respective weapons. It will take 4 full rounds for Art to replace the cylinder, having spent one so far, with three remaining. Art will need to state his intent to continue with the reload for each of the next three rounds, as they transpire, or state a change to other actions if circumstances make that necessary.
Cole Trayne was attempting to reload the same model weapon, without a replacement cylinder. In PM, he and the Judge discussed the timing as per the rules and what it might mean if he were to abandon his attempt to reload and instead continue to fire the half-loaded weapon. Similarly, JEB had started to reload his Spencer (without a spare cartridge) and then chose to fire instead of continuing with the reload task -- and the Judge applied the appropriate action requirements for that choice to be effective. Of course, Travis Sunday, who knows the rules well, has stated his actions for reloading his Starrs, declaring the overall time it would take him to accomplish the task -- and the Judge had confirmed with Travis that he would need to break it down into the required full round actions in gameplay, stating his action each round (as to whether he continued to reload or switched to different actions each round). As seen in this rounds actions, Sunday stated his intent to continue the reloading process, for the 2nd full round action of the process.
The Judge mentions these to further demonstrate that the rules are being applied to all characters evenly, as written, based on the type of firearm employed.