Sorry that you had bad luck with Eley cartridges. There was a batch of Grand Prix 12 bore stuff out with plastic cases but put into boxes marked Paper. I have some but the Dealer did tell me of the mistake. I have just checked a few and all have fibre wads (shone torch from behind case). I wonder if it was ones from this batch that you had experience with (orange case with high brass head 30 gram number 6 shot). I use Eley a lot and have no complaints. Lagopus.....