I would suggest that in the context of an isolated range a decent FAK and training could be critical, so the value of the gauze increases
I'd also suggest that $50 spread over 3-5 years comes in at about 25cents a week? Don't what you shoot or how often, but I suspect the cost of guns and ammo is much higher, so if you look at it in context it might help
And if the range is shared, perhaps it should be a communal FAK?
Just thoughts, feel free to ignore