I think that sort of gets done already when people have really rare guns at ranges (in particular, it's how ranges tend to have post-1986 dealer sample NFA items available; there's a range and then an affiliated company which sells to police and has the dealer sample letter; blackwater got in trouble for sending dealer samples to their forces in Iraq).
It would be interesting to have a "condotel" style gun range, but in general, people who have huge private collections don't seem to want to rent them out, and most of the guns used at ranges are of a very limited selection which are most popular (you could probably fully stock a pistol range with $50-$100k worth of Glocks, Sigs, HKs, and some S&W revolvers)
It would be interesting to have a "condotel" style gun range, but in general, people who have huge private collections don't seem to want to rent them out, and most of the guns used at ranges are of a very limited selection which are most popular (you could probably fully stock a pistol range with $50-$100k worth of Glocks, Sigs, HKs, and some S&W revolvers)