Machine your Revolution breech for dual autococker ball detents. 
The Revolution has a reputation for double feeds; this modification helps out. By placing a pair of autococker- threaded (3/8"-24) ball detents in the breech between where the ball falls in and the back of the barrel, the ball is kept back against the bolt face, preventing double feeds. 
Large paint and keeping the barrel closer to horizontal are also good ideas, but a pair of good detents is a huge step in the right direction. 
I've used Inception detents for my mods, and while they're great detents, a slightly stiffer spring would be a further improvement. Not a lot of other markers out there running a 0.775" breech diameter so every bit helps.