ohland
08-22-2015, 06:47 PM
Well, the old retrobate was whining about some 439186 for the 43 Spanish, so I pulled out a few moulds and fired up some heavy-duty pot. Er, I mean I fired up the heavy-duty pot. I turned on the Pro-Melt...
I paired up the RCBS 41-260-FNs and the SAECO #415 (220gr). After they were up to heat, pretty good. The RCBS mould was rain of bullets, the SAECO took a bit more to come up to heat. Yes, I pre-heated both on the pot before casting.
Since each of these moulds takes @ 500 grains per pour (not including sprue!), I got down to below half pot, and I had to refill the bowl, er, pot. Not expecting nirvana, I put both moulds (225415 and 439186) on the rim and let them heat some. After another fluxin', I started to pour...
The 225415 suprised me, it came up to temp in about 5 pours. To all the timid, I used the single cavity, unvented, 225415, with the 439186 (370gr). NO hot plate. What I did do is pour the 225415 and continued to pour about half the ladle.
The 439186 is a cypher. The plate is loose, yet it does not want to fill. The nose has lines, looking like the pour is not fast enough, yet it was getting hot in my hand... I might try it with a fast bottom pour, the ladle seems to be having trouble getting a fast enough pour through the sprue hole. Pouring straight into the sprue hole resulted in partial fills. I was able to get half-buttock pours by tilting the mould, pouring, and continuing the pour while pulling away. Widening the sprue hole will wait until I've tried 750 degrees and bottom pour...
I tried my Lyman ingot mould, and I found my Pro-Melt needed to be about 725-750 before the bottom pour would unfreeze. It is amazing how hot the ingot mould gets...
I paired up the RCBS 41-260-FNs and the SAECO #415 (220gr). After they were up to heat, pretty good. The RCBS mould was rain of bullets, the SAECO took a bit more to come up to heat. Yes, I pre-heated both on the pot before casting.
Since each of these moulds takes @ 500 grains per pour (not including sprue!), I got down to below half pot, and I had to refill the bowl, er, pot. Not expecting nirvana, I put both moulds (225415 and 439186) on the rim and let them heat some. After another fluxin', I started to pour...
The 225415 suprised me, it came up to temp in about 5 pours. To all the timid, I used the single cavity, unvented, 225415, with the 439186 (370gr). NO hot plate. What I did do is pour the 225415 and continued to pour about half the ladle.
The 439186 is a cypher. The plate is loose, yet it does not want to fill. The nose has lines, looking like the pour is not fast enough, yet it was getting hot in my hand... I might try it with a fast bottom pour, the ladle seems to be having trouble getting a fast enough pour through the sprue hole. Pouring straight into the sprue hole resulted in partial fills. I was able to get half-buttock pours by tilting the mould, pouring, and continuing the pour while pulling away. Widening the sprue hole will wait until I've tried 750 degrees and bottom pour...
I tried my Lyman ingot mould, and I found my Pro-Melt needed to be about 725-750 before the bottom pour would unfreeze. It is amazing how hot the ingot mould gets...