I purchased mine from the local sporting clays course near Calgary and I believe that they are sold out, so not much help there. I think that they ordered around 40 cases and they were gone in a couple of weeks. Yesterday, I spoke with the Canadian distributor and he indicated that they were also sold out of the first order that they received, which was part of the first production run on these shells made in the USA. He said they were waiting for another production run in order to get more in stock. The implication being that the US distributor is also out of them at the moment...
I certainly hope that this was not an experiment and they become a staple item for Kent to produce!
The other 2.5" shells we can get in Canada are $25.00 a box, so way too expensive to burn up on clays...