"Good luck, buddy !" Thirty caliber trays are hard to come by - my uncle, Ray and I designed and made a dozen sets about ten years ago - these now command their weight in gold! ;) There was a gentleman in Lousiana who made some up for Guy Chism - you may be able to get some out of Speedy, but be prepaired to open the wallet! ;)
I can attest to a FACT here; making bullets without a GOOD set of "jacket/core drop trays" is a royal pain in the posterior, or, as Al might say, "without 'trays' the PINTA factor is off the chart!" ;) When ya find some, part the $$ and don't look back . . . . hemorrhiods only bleed for a little while! ;)
Meanwhile, KEEP 'EM ON the X! R.G.