Actually, if you look on page 33 of Caberslash's link, you will see that they reported that 30,111 deer were culled on the NFE in 2013/14. Whether all of those were by FLS people isn't clear. But lets say that they were. That means that the 5,665 shot at night were 19% of the total. So your shot in the dark was spot-on. Maybe that number will be higher nowadays.
Now, how much did they sell the usable carcasses for ?
But what about more recent numbers ?
So I looked at the 2020 publication by the Deer Working group.
The management of wild deer in Scotland: Deer Working Group report - gov.scot
Page 41 refers.
For the last data, 2017/18 it was 135,715
Now make a wild guess that FLS were still bagging about 30% of the total cull. That would mean that they were taking 40,552 in 2017/18 That is an awful lot of deer by anyone's standards. Not sure if they were converted to lead-free then, but they are now.
Whoever they get their ammo from, that might be a tempting contract to bid for, even if they are only paying say £1 for each round, that's still about £41,000 in total. I don't think that's an unreasonable figure, considering that HPS can make target ammo with a similarly priced bullet and retail it for £1.10 including VAT.
How much profit could you make supplying that, well probably not very much really. But up the price a bit and it starts to look very interesting. And you could easily fulfil it from your spare room with a basic progressive press, its only 112 rounds/day averaged over a year. Crank up with say a Dillon 750 that might do 500 per hour and you could theoretically complete the order in 82 hours.
Here is a snap. And observe the upward trend in total cull numbers.
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