I found a FB group (Reloading Equipment That You Are Getting Rid Of and What Ur Looking To For) that people will list reloading supplies they have and are trying to offload. I would see .25-20 shells every now and then but would usually miss out. Well, last week I scored, 100 pcs of brass for 45.00 shipped. I could turn around and flip these on gun broker and make my money back and then some but I will hang on to them. So now I have found 300 pcs of brass (all with the correct headstamp). 100 rounds of loaded ammo (Remington and winchester, 50 each). I also have one box of Remington ammo hidden somewhere. I also ordered 500 pcs of 85grn cast bullets. Looks like I'll be working up some loads and slingin' some lead down range.
I decided a long time ago that 25-20 was probably the perfect 22lr and 22wmr replacement that is also reloadable. It seemed like 25-20 ammo was way more available 25 years ago then it is now. But 22lr ammo was like 2 cents a shot and 22wmr was like 7 cents a shot back then so I never moved on it.