Trev:

Many of the single triggers on the scatterguns you mention fail, whether they are 2 stage or 3 stage triggers. I for one really dislike single triggers because they are problematic but I do shoot a Browning O/U with a single selective from time to time. Which trigger you pull is dependent on the application as well as the chokes. Many of today writers devalue, for want of a better term, or even dismiss the potential of 2 triggers, 2 chokes and 2 different shot sizes but I think them to be armchair hunters/shooters and haven't practiced/shot enough to use the variables effectively. You will need a frame of reference. I use the back of the triggerbow guard and usually pull the back trigger 1st unless there isn't a distance shot first. You could use the front also. If you are shooting the same shotsize, the tighter choked tube is going to be for the longer range and the more open tube for the shorter range, of course. But this statement hinges on the huge assumption that one has patterned the double and knows the pattern variations with respect to shot sizes. It is possible that the right tube could pattern one specific shot size tighter than the left, but this is not the norm. If you are shooting mixed bag, say prairie chicken, pheasant, quail and possibly a slight chance for turkey, a possible combination you would want would be a No. 5(U.S. of A.) in the left and No. 6 or 7 in the right. I shoot 65mm a lot and use RST 1 1/16 No.5s in the left and Gamebore Fs #6(British) in the right. But even with 2 3/4" chambers with it being a 6lb 12oz double you are probably going to stay below 1 1/4 oz shot charge and I'd stay around 9k psi for the most part.

Kind Regards,

Raimey
rse