augois
07-09-2008, 07:53 PM
I have had a Lyman 266386 Mould for some time now, and never got around to trying it. It is intended to cast a 6.5mm 105gr Plain base bullet. Well, Today I thought to myself...(that bullet just looks too cute to not dump a few) so, I did. I learned 3 new things during this session:
1. I don't know everything
2. I am not as patient as I thought
3. Clearly this mould is a minion of the Devil himself!
This is by far the wrinklingest mould I have laid hands upon. Now, don't get me wrong....I don't consider myself as "Captain Castastic". However, I have done a bit, and used various moulds, though none as deviously evil (it's just such a cute little mould). I tried casting hot, fast, slow, pouring fast, and pouring slow. I finally got some decent bullets by casting fast, pouring fast, and not giving the mould a chance to breathe. I had to stop, because the handles were getting too uncomfortably hot to hold.
I have a couple of theories, see if I'm on the right track.
1. This is an old single cavity mould, that was made with Lyman's
tiny little blocks. My theory is that since the blocks are so small,
they cannot store enough heat and therefore cool too rapidly.
2. Upon study, amd reflection, it ocurred to me that the vent lines in
blockfaces are virtually non-existent, Thus trapping air in the cavity.
Am I close? Opinions? theories?
PS. to make matters worse, I laid my arm on a hot sprue and burnt the shinola out of myself.:twisted:
1. I don't know everything
2. I am not as patient as I thought
3. Clearly this mould is a minion of the Devil himself!
This is by far the wrinklingest mould I have laid hands upon. Now, don't get me wrong....I don't consider myself as "Captain Castastic". However, I have done a bit, and used various moulds, though none as deviously evil (it's just such a cute little mould). I tried casting hot, fast, slow, pouring fast, and pouring slow. I finally got some decent bullets by casting fast, pouring fast, and not giving the mould a chance to breathe. I had to stop, because the handles were getting too uncomfortably hot to hold.
I have a couple of theories, see if I'm on the right track.
1. This is an old single cavity mould, that was made with Lyman's
tiny little blocks. My theory is that since the blocks are so small,
they cannot store enough heat and therefore cool too rapidly.
2. Upon study, amd reflection, it ocurred to me that the vent lines in
blockfaces are virtually non-existent, Thus trapping air in the cavity.
Am I close? Opinions? theories?
PS. to make matters worse, I laid my arm on a hot sprue and burnt the shinola out of myself.:twisted: