Can someone please help clarify things for me?

Back in the 1970's I used to buy BSA Pylarm pellets in .177 & .22. The .22 ones were in a black tin, orange writing (can't remember the .177 tins) but eventually they disappeared. Much later on I remember reading somewhere that Gamo were making them on the BSA machinery & selling them under a different brand name but they werent as good as they were. Is this true? Did Gamo acquire the machinery when BSA went through the changes? If so are Pylarms still available albeit with a different name? If so what is it & what are they like quality wise. My thoughts are that if they are made on the original tooling assuming its not worn & they don't get bashed about then they should be pretty much as they were.

But

Then I was chatting to someone who said that Eley made the pellets for BSA, & that they were the same as the Wasps of the same same time........ ( 177 & .22)


Ok i admit i am totally confused.

So for both .177 & .22

Did BSA make their own branded pellets on their own machinery?
We're the machines sold or transferred?
Are the original 'Pylarm' tools still in existence?
Who has them?
Are they used, if so what is the brand name/maker please?

And....

If Eley made pellets for BSA were they the same as 'Wasp'?
What's the difference between the 1970's Wasps & the current ones, in the blue tin, not the 5.5 ones?

Thanks in advance to the pellet collectors & historians

Rod