I have only used lubed patches. Makes sense for hunting to use a dry wad. I've heard it works well in some smoothies.(for hunting)
Just to toss in some additional views from my particular experiences:
1) I have always used an Oxyoke pre-lubed wool wad over powder for my large powder charge hunting loads in my various rifles;
2) I have run chronograph tests with and without wads with the following results:
A) Standard deviation dropped from the 25fps area all the way down to "6".
B) Then to my shock and surprise, contrary to my assumption that there would be a
subsequent velocity increase due to the improved sealing, there was not...in
fact velocity dropped off 20-30fps
3) When I got into smoothbores and started conducting load development and range tests, I naturally used Oxyoke wads as I had for years in my rifles.
The GM smoothbore barrels have rear sights on them and frankly they're basically as accurate as a rifle at the 50 yards I zeroed them for deer hunting in thick woods.
But after 2-3 range trips with all sorts of variations to my hunting load configurations, I was pulling my hair out over an occasional flyer. I could run several .600" balls into a single ragged 1.5"-2" hole then all of a sudden one would print 4-5" off to the right...next group of 10 might have one print 4-5" low left...no pattern.
Then in desperation and against all previous experience, I tested without using the Oxyoke OP wad and never had another flyer. When I added the wad back in the mix, I got the occasional flyers again.
This phenomenon occurred with both the GM .54cal and .62cal Flint smoothbore barrels.
So, then thinking that maybe I was occasionally getting gas blowout on one edge right at muzzle exit that could be tipping things off course, I tried using 2 Oxyoke wads...then 3 wads...but no help...as long as wads were being use I got the occasional flyers in those smoothbores.
So on the .54cal, I dropped back down to a Hornady .520" ball so I could use a thicker .018" pillow ticking and accuracy is outstanding with 90grns Goex 3F and no patch burn through.
I probably could have done the same thing on the .62cal...dropped down to a .595" and used a thicker pillow ticking, but instead I experimented by having Ed Rayl add rifling, it was a tack driver, filled my deer tags with it the past two years so that was a good overall learning experience...actually just sold that .62cal 'rifle' to help finance a .58cal Virgina I'm having built.