While the possibility of a lead ban exists it is not a foregone conclusion yet. You seem to be giving up too easily.
It is the EU that wants the lead ban. The Tory Government want to impliment the same ban under the guise of the HSE.
We are in fact still under the control of the EU. BREXIT gave the Government the right to change existing EU legilslation IF it wants to and can refuse new laws from the EU IF it wants to.

If it had not been for the introduction of central heating most of us would still be drinking water coming through lead pipes.
This is NOT an environment issue it is a disarmament policy.

FACE has launched a legal challenge to this. If they win and the EU cannot ban lead will the UK Government continue with the ban? I think they will that is why they are hiding behind the HSE.

It is possible that our the Gun Trade Association may launch a legal challenge as well, along with everyone else in the trade affected by this.

The EU also wants to classify lead as "Substance of high concern" If that comes in it will mean no one in Europe including the Uk will be allowed to possess lead. Historical ammunition collections will have to be handed in and sea fishing weights will be banned, so it is imperative that this draconian ban is challenged.