I too use felt sometimes in my shotguns. Why do you suppose my old hat got all those holes .Dura
Dura felt is the main wad used for conicals over powder in rifles to protect base , and in my shotgun a couple of bear oil soaked wads over shot and one dry under powder gives dense patterns #6 shot . And the other benefit in 12 ga is my Pedersoli is wearing screw in chokes and the felt wads work at 12 ga not needing smaller ga unlike cards !!! See how IdahoeLewis uses conical sitting on Durafelt wads over powder from 25 yds to 1200 yds and demonstrates accuracy unlike anyone else with factory TC Renegade barrels . I dare say he has done this more often than our English friend has killed game in his lifetime if he lasts another 50 yrs after Lewis quits (not happening)
All I said was, I don't recommend it.
How is that bad?
Maybe I should of added that for bullets I would favour a grease cookie. Just my choice.
Back to shotguns, thin cards DO curl past chokes like felt. I have choked muzzleloaders too.
Have your panties untwisted yet....
Oh, Idaho Lewis is an awesome shot. So are others, that don't use felt!