Was a point that I picked up some years ago from a John Barsness article - no point to develop excellent loads, if you can not get those components any more - so either get enough at the start, or do not bother. Gets easier, I guess, as one gets older - so 300 bullets, 300 primers, a couple pounds powder and 100 brass now, lets me develop a load for a rifle, that is both accurate enough and powerful enough for my purposes, and leaves me with LOTS for future use. So, I do not care what they introduce or discontinue - does not matter - I have the load developed and the components to make more - worked then, will work when I need them to again. It can get a bit borderline bizarre - sort of silly to have 308 Win, 30-06, 300 H&H, 308 Norma Magnum, 300 Win Mag and 300 Weatherby Mag all ready to go - is considerable overlap there. Gets perhaps even "stupider" to have more than one rifle in any one cartridge - say one with a 22" barrel and another one with a 24" barrel - but using same ammo - normally can only go hunting with one at a time ...