5 lbs is too heavy-if the gun weighs 5 lbs, anyway.

There is more that goes into a trigger pull than the letoff effort, and no matter how many times I type that, I get an argument from people who think otherwise.

In wingshooting, the shot should be fired about the same time the buttplate hits one's shoulder. Hence, a shotgunner doesn't "squeeze" a trigger, like a rifleman does. The correct terminology is "tap". The exact number isn't all that critical, but, all the shotgunners field gun triggers should hover around the same number, or effort.

And the correct weight of a shotgun trigger's release is a little more than that of a fine rifles. I don't mind over 4 pounds, if the break is clean, without any overtravel to speak of, which seems to trouble me getting to the second trigger.
Best,
Ted