New Shotgun Shells with Paper Wads

I like the idea, assuming it doesn't make an already expensive sport prohibitively expensive. Us old timers will recall shot shells were once loaded with fiber or cork base wads. No shot cup. And a paper over shot card wad, with a roll crimp. Plastic injection molding changed our world. By the article it appears an effective sleeve has been developed to protect barrels from abrasive hard shot. Have you noticed; hunting permit sales are declining nationwide. Game wardens are still busy chasing poachers. The price for participation in our sport is quickly becoming problematic for many.