again, I DON":T recommend shooting buck shot or slugs thru a full choke, but do as you feel safe!
and well, Maybe have to buy more, maybe of a different brand to see ?
as if you cannot find more, pattering them is rather MOOT, no, as what will you hunt with if they worked ?? LOL
and to be honest to get a FAIR HONEST assessment of a load, you need to be firing 3 shots and getting a base line from the same rest and position and range IMO!
JUST shooting one, doesn't mean anything to me!, but again, not everyone is the same! and YES I know ammo costs money, never said it was a cheap game, but to do it right, there is a process to follow if you wish for the best results!