Have you looked into Blue Bullets. Also you can get pulled bullets pretty cheap from a certain website…
I've looked at the blue bullets recently, they were pricey compared to what I'd paid for bulk j&k lead/lubed bullets at $40 to $55/k the last time I stocked up, but every component is fucking pricey now.
hell I tested/played around & powder coated some of the lead bullet stock I had about ten years back, some of it was pretty good finish & some was spotty, I loaded it up & shot it anyway.
Figured I'd give my powder coating bullet skills a test again next time I load my 45/70 and/or 41 mag, but I don't bother reloading their empties till I'm down to 100 loaded rounds & I've got several hundred bullets of each cast now that I ought to practice coating now so they'll be ready.
as for p&p bullets, i bought a shit load bulk from iircc Missouri bullet or some other company that was around st louis way back when they were selling p&p m193 for $20/k and m80s were $60 or $70/k + s&h and when you bulk bought they were delivered in 50cal cans in a cardboard box, they sold once fired lc 556 & 762.51 and other calibers brass cheap back then too.
Edit to add: I bought several k of p&p tracers too, they were way too cheap to pass on, I loaded bunch of them in once fired steel wolf cases for mag dumps at the old ar hometown shoots we used to have, got approx 50/50 that'd light.