Bret4207
At the casting bench in the sky. RIP Bret.
I'm a strange bird I guess. I enjoy doing it just as you describe. 10 cycles and I have 100 bullets! 100 cycles and I have a 1000! Can't kick about that at all IMO.
New Mold, Wise Choice ???
- Thread starter Walks
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I'm a strange bird I guess. I enjoy doing it just as you describe. 10 cycles and I have 100 bullets! 100 cycles and I have a 1000! Can't kick about that at all IMO.
Yeah, a MP 4 cavity brass mold can get heavy. I've never used an electric pot or bottom poured. Always a ladle and a casting table with propane. They get heavy after a couple hours.
There seems to be something to the 3rd casting session deal when using these brass molds. Both of mine started dropping a lot of perfect bullets on their 3rd time. After that, each time mine get warmed up I can usually keep the first bullets from each session.
As long as you get a good cadence (not too fast, not too slow) a MP brass will sure make bullets pile up. I just love to see my bullet box fill up.
I do keep an eye on the interior of the mold as I don't plan on cleaning any build up off of the faces of the mold like some have had to do.
There seems to be something to the 3rd casting session deal when using these brass molds. Both of mine started dropping a lot of perfect bullets on their 3rd time. After that, each time mine get warmed up I can usually keep the first bullets from each session.
As long as you get a good cadence (not too fast, not too slow) a MP brass will sure make bullets pile up. I just love to see my bullet box fill up.
I do keep an eye on the interior of the mold as I don't plan on cleaning any build up off of the faces of the mold like some have had to do.
RBHarter
West Central AR
My one 2 cavity MP in the land of rust doesn't exist here took 9 cycles to run right . I did the customary heat cool prep ahead of those cycles also . I was just about ready to chuck that mould in the brass scrap bucket . Then in an unsavory incident involving being distracted it was left out over a rainy weekend . About .187 in rain as I recall terrible 30% humidity all weekend ....... miserable for a guy living in 14-21% world . It eventually took hold and runs like a champ now , but I'm in the rainforest belt now . It probably would have cast great after the second cycle here .
Here in Carolina with all of the moisture, it seems stuff takes on a patina quick.
You could be right Bret about all the oils taking time to get burned out of the interior of molds. Regardless, my experience has been every mold that somehow shows up at my house takes at least a couple sessions before magic happens. When I started casting big bullets for my BPCR's years back, I would get frustrated that even after cleaning (I thought) a new mold I would get wrinkled bullets. The mold was hot as Hades and the alloy was at a good temperature and when that mold was new, the bullets would be rejects. I'd shut everything down and walk away and come back a day or so later. Expecting no better results, all of a sudden perfect bullets would drop out with nothing else done to the molds.
Now I'm a couple dozen molds older and frustration doesn't come into play. I just expect to take a couple sessions before the mold acts right. These MP brass things like 3 sessions for me, then as long as my arm doesn't try to fall off and my back doesn't hurt too much, I can cast until I get bored.
You could be right Bret about all the oils taking time to get burned out of the interior of molds. Regardless, my experience has been every mold that somehow shows up at my house takes at least a couple sessions before magic happens. When I started casting big bullets for my BPCR's years back, I would get frustrated that even after cleaning (I thought) a new mold I would get wrinkled bullets. The mold was hot as Hades and the alloy was at a good temperature and when that mold was new, the bullets would be rejects. I'd shut everything down and walk away and come back a day or so later. Expecting no better results, all of a sudden perfect bullets would drop out with nothing else done to the molds.
Now I'm a couple dozen molds older and frustration doesn't come into play. I just expect to take a couple sessions before the mold acts right. These MP brass things like 3 sessions for me, then as long as my arm doesn't try to fall off and my back doesn't hurt too much, I can cast until I get bored.
