For me, I used to try to have enough ammo or reloading components to last 5 years worth of trips to kokohead.
I was hoping a 5 years supply should last thru any shortage and make it thru to the next period when prices normalized
This was before Covid, BLM, Ukraine and Hamas
Now I’m thinking that when prices come down a bit, I’m going to extend my supply to last 8 years, especially for 12 ga trap loads and 22lr since that is what I mostly shoot.
For the calibers, I don’t shoot much, I try to have
9mm - 4 boxes of hollow points (about 80 rds), 1-2k of FMJ, 2k of reloading components
40sw - I buy a lot if cheap. I have Glock 23’s with 9mm conversion barrels. I can switch to 40 if all my 9mm runs out. Stores never run out of 40sw
223 - 1-2k of fmj, 2k of reloading components
12ga slugs - I buy a lot if cheap, not for HD or hunting but for friends/family to have fun. I think of it as “cheap” fireworks/entertainment
Hunting rifle calibers - 6 boxes (120 rds)
One thing that is good about overstocking more than what we typically use, we got to go to the range more since it was less crowded when there were shortages. Almost no queue at trap