Much of the discussion in this thread and others online around lead ammunition are perhaps less about the evidence and more about people's individual views/position. Which is very understandable. Change is difficult and for lead ammunition the personal perspectives aspect has been researched as follows:
As for the evidence, the GWCT has reviewed it and and a lead shot Q&A is outlined here:
www.gwct.org.uk
Nine UK organisations stated their position in February 2020. That position is as follows:
In consideration of wildlife, the environment and to ensure a market for the healthiest game products, at home and abroad, we wish to see an end to both lead and single-use plastics in ammunition used by those taking all live quarry with shotguns within five years. The shooting community must maintain its place at the forefront of wildlife conservation and protection. Sustainability in our practices is of utmost importance.
Many years ago, wetland restrictions demanded a move away from lead shot and we believe it is necessary to begin a further phased transition. Recently, there have been significant developments in the quality and availability of non-lead shotgun cartridges, and plastic cases can now be recycled. For the first time, biodegradable shot cups for steel shot, with the necessary ballistics to ensure lethality, are available. These welcome advances are continuing at an ever-quickening pace, in response to demand from a changing market. Such advances mean that, over the coming years, a complete transition is achievable.
We are jointly calling for our members to engage in this transition and work with us, the Gun Trade Association and the cartridge manufacturers to ensure that further viable alternatives are developed for every situation involving live quarry. This is an opportunity to take the initiative and ensure the reputation of the shooting community, as custodians of the countryside, is both maintained and enhanced.
Together we wish to see an end to both lead and single-use plastics in ammunition used by those taking all live quarry with shotguns within five years.
basc.org.uk
We are now almost one year into a transition process and so much has already changed, despite Covid, and this consultative process will continue.
A diversity of options for plastic-free and non-lead ammunition will continue to be innovated. The development of new products has seen a surge in enquiries about non-lead shot from BASC members and our regional teams are reporting more and more discussions about non-lead alternatives. In a recent BASC membership survey, 70% of respondents stated “phasing out the use of lead and plastic shotgun ammunition” as either very or somewhat important.
It's been stated before and perhaps needs stating again that BASC will continue to fight against disproportionate and unsubstantiated restrictions on the use of lead ammunition - after all we have been leading this fight for 40 years.
At the same time, together with eight other UK organisations, we are encouraging a smooth voluntary transition away from the use of lead shot for live quarry over the next five years.
These areas of work are not mutually exclusive.
In summary we are working to prevent bad laws from entering into force whilst encouraging a five year research and development period for viable alternatives to lead shot for live quarry shooting.