[ballardw]

Scope of interest might be helpful.
Is this an "ever in your life" or "last year"?
I can list
20mm
.50 BMG
105mm
and a couple of others
as "fired" but never bought as Uncle Sam was footing the bill.
And are we talking cartridges or weapons? I have inherited rifles and ammo so never bought either (though reload for them).

5.7x28, no
.357 Herret, no
12ga, no
.44-40, no

really don't remember all the "here try this" over the past 50 years that I may have fired.