Some really good points and comments.

I have heard negative comments in the past and also take them on board. Such as the stocking not being good for shotgun use. Perhaps the comb being setup too high for "open sights" or the bead on a shotgun. Not being properly balanced for the shotgun barrels.

All valid points, or can be depending on the situation. I picked up one of my shotguns yesterday, my most pretty shotgun, but it is not the best shooter, and seems to be stocked for trap shooting, shooting high, even though a side by side field shotgun.

Shotgun barrels on a double rifle are definitely a compromise. The question is whether they are a worthwhile one or not. I think it depends on the individual gun/rifle.

xausa, I like the point about using the DR with shotgun barrels on clay target shooting. Even if the balance is different a great way to shoot off hundreds or thousands of rounds in practice.

All of my double rifles and shotguns have two triggers except for one! The one I will talk about below. I do have a two trigger setup for it, which needs a gunsmith to replace the existing single trigger. Then it will be usuable! For a two trigger guy.

tinker, interesting to have 12 bore shotgun barrels with 16 bore rifle barrels. Which were actually first? I guess the 16 bore with more common 12 bore shotgun barrels added.

Bwana, 28 gauge barrels - did you choose that bore, or was it to match the lighter barrels of .30 and 7mm?