As I understand it, the standard arrangement for double triggers on a side by side is for the front trigger to fire the right barrel and the rear trigger to fire the left barrel. Or if a single trigger, it selected the right barrel first, then the left barrel (based on the process that it is more natural for the shooter to press the front trigger, then continue the motion of his finger to the rear trigger). When John Olin was having his company build Model 21s for him, he had them reverse the process: front fired left, rear fired right, single triggers first fired the left, then the right. The reason was that for a right handed shooter, recoil from the right barrel pushed the gun "outward" away from the shooter, where as recoil from the left barrel pushed the gun "inward" into the grip of the shooter. So firing the left barrel kept the gun on target more so than the right barrel which tended to pull it away. So I have two questions for those familiar with double (side by side) rifles. Does the front trigger (or single trigger) fire the right barrel and the rear trigger fire the left barrel? If so, is there a noticeable difference in the rotational effect of the recoil, depending on which barrel was fired? I'm wondering if this was more a matter of theory than actual use.