You are correct here 'Marcher'.. That is an excellent and really useful find mate!.. Brilliant!
Actually, it's interesting that ClayGame have got their hands on them. I'm not convinced that they are worth having, nor necessary with a modern gun actually designed from the outset to shoot "steel" (actually soft sintered iron, if made properly).
Take a look at e.g.
for some thoughts on what appear to be very similar things.
Now, my little clay shoot, based on a small organic farm, pretty much developed Gamebore Super Steel 24 gram size 7.5 steel shot, fibre/cardboard wad cups, but not completely enclosing the shot column, and we put thousands and thousands of these through all sorts of guns with never a problem. We had to special order them for start of the clay season and it took a working party to unload them and stack them up in the barn.
They weren't advertised, Gamebore used to run us off a big batch in anonymous transparent plastic cases so that we could at least see that they hadn't gone rusty in storage, that could have been very bad. Actually I think I still have a few slabs left dated 2009, so might do a dissection to see what might have changed by now.
They weren't really very good, but did work, we adjusted the ranges of the traps down a bit, picked up a lot more re-usable clays and AFAIK never did a hint of damage to any of our guns, some very fine indeed. And the choice was them, or give up the shoot.
But then one year they just refused to take another order. Something must have gone wrong in their supply chain, or they simply couldn't be bothered with our business any more.
Lets see, here is an offer, I would like to dispose of (low estimate) 75 oz of lead, 25 times/ year, say 20 people each time, by scattering it across your land. And do it year on year on year, with no possibility of remediating the land, whilst the cattle continue to graze on it and chew the cud.
I mean, in what crazy world does it make any sort of sense to say shoot off maybe 75 rounds of 1 oz lead and plastic, maybe 20 regulars, every fortnight, over a few acres of land that is otherwise grazed by rare breed organic beef cattle and other things, that then drains onto wetland that is SSSI. I reckon that's over two tons of lead, year on year on year, for a very modest little private club.
As for the plastic "eco wad" alternatives, well AFAIK there is still only one.
You can't buy it as a component. AFAIK. Nor I think would you want to, It is heavy, and turns quickly into slimey gloop if wetted.
A lot of EU money went into developing it, into Spain. Armusa, Green Shoot, Plasticos Hidrosolubles, SL of Valencia.
A few links for you to form your own opinions:
Richard Atkins tests new cartridges from Armusa, a leading Spanish manufacturer with green credentials
www.clay-shooting.com
Frankly I think plastic wads are the work of the devil, if ever allowed should at least be coloured blaze orange, and picked up. Not disguised as innocuous transparent things that can just be, well, forgotten about.
As is lead, it's had it's day. But oh no, the die hard clay shooters will continue to insist on lead and plastic wads, the old boys just won't accept that the world has moved on and will continue to cheat by using the stuff where it is absolutely not allowed.
As for say Bismuth, well guess where it comes from. A trace element from smelting lead. Technically nearly as rare as Gold, I think. but basically valueless because it has no particular use except for say alloying in specialist solders. Not for blasting out of shotguns.
Gamebore will continue to proudly boast of having the last remaining lead shot tower in the UK and presumably plan to keep on chucking stuff down it, I dunno, melted up car batteries, or whatever, down basically a chimney with sieves at the top and bottom and I guess a fan system to keep blowing cold air up it (and whatever then blows out of the top).
Now that would make an interesting factory tour video.