Skimmed through the one from the month and year of my birth. It broke my heart and warmed the cockles of my wallet reading about the stuff you could mail order for prices that today are next to nothing.
Sigh...
Meh... keep the online inflation calculator handy, plus, the 2008-non-recovery-recovery notwithstanding, the disposable income ratio of the employed is on average significantly higher, while other things related to inflation, like food are down, and gas, while volatile, overall is kinda/sorta flat.
The $50 milsurps in the barrels at Woolworth's when I was born in '73 are now about $250 in 2015 dollars... which is around what milsurps (when they're in good quantity) cost now from some of the large online retailers.
$.99 50 count box of .22LR is about $5.25 in 2015 dollars. Mid-grade .22LR is running around $3.75-5.00 per 50, and this is the tail end of the "panic". $2.50 per 50 for the 500 round bricks once panic pricing is over, and $25 is the "new normal".
So digging into it, besides the coulda, shoulda, woulda milsurp collectibles that were common, the actual prices of general new commercial production guns and ammo is arguably the same, to markedly cheaper, with the average gun collector's purchasing power higher than it was when he was born. I mean yeah, there were DEALS, like the famous late 50's early 60's Cadmus Industries Solothurn 20mm was selling for about $1500 in 2015 dollars.
Yeah, I bought my first (used).45, a commercial Colt for $65 American money from a gunshop on what became the Boulder Mall (Pearl Street). (No 4473 at the time, either.)
Assuming it was 1967, just to make the least drastic inflation argument possible, that's $454.69 in 2015 dollars. And at time you probably had less disposable income.
