I built a firing fixture many moons ago during an ammunition development contract which allowed firearms to be remote fired for safety. The foundation was a Lead Sled.

I also built a similar fixture some years ago for firing compound bows remotely without shooter influence.

Would anyone suggest I could sight in my compound bow by firing it in the bow fixture, then ethically take it afield to hunt deer?

So why then are folks so obtuse to accept, even recommend, a hunter use a Lead Sled to zero their rifle and take it afield, equally under practiced, and insufficiently prepared?