Can you elaborate on this?
The pellets are not in a wad like in a shotgun round,
but loose in the tip of the shell.
They travel along the barrel bouncing of the rifling.
The said rifling was engineered to cut the outside of the bullet,
but not to withstand the random impact of those pellets,
(that is somewhat similar to the metal-bead blasting,
but much more un-even and at a higher velocity).
When used many times in a barrel,
the result will be a rifling with un-even wear.
I have seen few of these barrels,
I have even cut a couple of them longitudinally.
The wear marks look like a very fine pitting or micro-abrasion.
Also, the top corners of the lands look like
they have been rounded by very many small dents.
You can use those shells in an already fcuked-up barrel,
but I wouldn't try them in an aftermarket, expensive, target grade tube.
The ones with transparent plastic tip may break in semi actions,
and if you don't clean ALL the pellets,
they may ruin a lot of things in the action.
I would stick with Win or Federal (if they still make them)
IIRC the shells were all metal.
There was a guy around Vancouver
who was making his own (shotshells and smooth barrels)
and using them in a funky bolt action single shot.
The shotshells were made from stingers by replacing the factory bullet
with a plug of wax pressed togheter with the pellets.
Barrel was quite long, about 22"-24" and very constricted at the muzzle.
I do not remember how it was patterning,
but the pellets were going through the front wall
of an empty plastic pop bottle at 10yds.