...well, yeah, they WORK...go "Bang", anyway, but...using the .410 cartridge in ANY of the "short tubes", I do NOT believe you'll see the type of patterns necessary to score well at Skeet, much less at Sporting or other longer-range endeavors...I base this on MANY patterns shot with MANY Skeet guns...pumps, autos, over-under barrel sets AND full-length tube sets...Claude Purbaugh--the originator of the "full-length" tube concept--AND Jesse Briley BOTH have said that you needed 94-96% of the measly 1/2 oz. of shot in the .410 Skeet shell to be deposited in a 26 in. circle at 21 yards to CONSISTENTLY break clays at Skeet distances...my patterning experience has born this out...no matter the choke present in the 12 ga. barrel, I do NOT believe the "Little Skeeters" OR the "Chamber Mates" can deliver that kind of performance...not to mention, with the .410 using WW296 or H110, you'd experience a SIGNIFICANT loss of velocity with the .410 in the "short tubes", affecting both LEAD and downrange ENERGY...I think they'd be Okay for CASUAL use, but lacking in performance for SERIOUS use...my two cents' worth, anyway....mikey357