Oh great, RST shells are hard enough to get as it is and now someone wants to shoot them on a regular basis for trap

They are a great shell as mentioned.
RST is a sponsor at most SxS shoots around the Country and donates shells for prizes. Last Saturday at the Duluth Double Gun Side X Side Classic when I went up to pick out my prize RST was notably absent, because they don't have shells to donate right now. I settled for a pack of Federals I'm not going to look a gift horse in the mouth.
They do make copper plated shot for hunting but you know that when you buy them. If you can buy them, like the rest of us they are having a hard time getting components and are on backorder. Friend of mine who owns a house in SD where a few of us hunt pheasants in November each year can't get 16 ga. RST 7/8 oz. this year for grouse and woodcock in Wi. so I am loading up a couple of flats of 16 ga. 7/8 oz. 7.5 shot for him. They are Cheddite hulls which are the same that RST uses but I use 2 3/4" his 16's are not short chambered.
Another friend has a first year Winchester 21 and another an Elsie both in 12 ga. and they can't get RST shells this year either. Been reading how
@mike campbell has been using Green Dot for 1 oz. loads for a couple of decades and he has done quite well at ATA shoots with them. And they are low pressure. I'm almost out of Clays powder so after he posted his load data recently I duplicated it although I don't have magnum primers so used Cheddites which is about all you can get now and even that isn't often. I'm very pleased with them and so are my friends with them in their guns. Although I didn't expect to end up reloading for other people this summer but whatever it takes to help keep everyone shooting.
RST is in Friendsville, Pa. and so is Hausmann’s Hidden Hollow Sporting Clays where the Northeast SxS Classic is held each year. One of these years I will make it "back" there for the annual shoot. Hausmann’s Hollow didn't exist until what to me is fairly recently. But I know the area well although it is about the farthest East I have hunted. A ruff grouse and phez. I took from the nearest Pa. SGL to Friendsville more than a few years back.
Don't look for a downtown Friendsville LOL.