Scotland's deer & non-lead bullets

Shooters are still trying to work out whether they're for or against the latest document on Scotland's deer, wDNA: Scotland's Wild Deer, A National Approach [downloadable as a pdf here]. At least it appears to recognise the value of wild venison to the rural economy. On the other hand, there are some alarming comments - not least (as Andy Richardson pointed out to me) this reference on p7 to 'assessing the effectiveness of non-toxic bullets':


Do they know something they're not telling us?