Lost track here, are you on about Rios or GBs??
With regard to GBs, mate of mine who regularly travels to NI to visit family shot them whilst there and was impressed enough to bring a few thousand back. A mixture of clay loads both plastic & fibre and some pigeon loads. I shot some of the plastic clay loads and was impressed, appeared to be hard hitting and reasonably smooth. This was about 3 years ago and I can't remember the price per thousand but it was very definitely at the budget end of the scale.
Would have thought there was a business opportunity here for someone if they can be sourced at the right price.
Mr Potter