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Thank you sir.
Bear in mind I saw references how to refrigerate assembly of parts in the World Book Encyclopedia from the 1950's. My father was employed by Pratt and Whitney to photograph cryogenic...

Edison improved existing light bulbs and made them economically marketable. Yes, our moulds work as is. Put one under a dissecting microscope and look at the cavity, it looks like a potholed road....

I am just a retired guy with an active mind. In a group this size of technically oriented people somebody will have access to the setup. I could have done it in my high school lab.

Good morning all;
As yet no one has answered the question. Has this been tried? It may not work, it may do nothing, there may be a 1% difference. Some of the things in my experience show that a 1%...

Has anyone tried cryo treating a mould? Particularly iron or steel? Liquid nitrogen is available pretty readily now. It does tighten grain structure in steel.

Not to put too fine a point on it, no one has answered the question. Has anyone tried it?

Ok, here goes...has anyone tried cryotreating a mould? Liquid nitrogen comes to mind. Make those molecules tighten up.

It seems to me that you are flirting with a possible FLASHOVER detonation? As the powder companies are not able, after very extensive experiments, not able to generate one on demand on test, and yet...

For the .45 family of rimmed cartridge, go to your local hardware emporiam and purchase a plastic 2ft by 4ft suspended ceiling grating. the squares are 5/8in on a side. !0 squares on a side is 6 1/2...

I recall an article a few months back, I do not remember where...the people shooting service rifle matches in the early 1920s, were having a bad build-up of copper in their bores. So some bright boy...

LORD; please watch over this man and his family. Every day is a gift. Amen.

Good morning to all;

I am a 5th generation Floridian, NRA Life member, participated in 4 position matches in the Explorer scouts, 9th bar sharpshooter. Later I became a trapshooter. Went to the...