Checking Lead Hardness With Drawing Pencils - Cast Bullet Forum
2019年6月27日 — This describes a method for the determination of lead alloy hardness. It is a simple, quick, and economical means to test hardness of unknown alloys, and I have found it …
Homemade Lead Harness Tester - Cast Bullet Forum
2014年3月29日 — Initial tests with 1 lb ingots shows much promise. I am thinking about using a heavier spring to make a larger indent and using the standard Brinell hardness formula instead …
Mixing linotype with straight lead - Cast Bullet Forum
2009年10月26日 — Lead does not give off fumes below 900F, but above 900 it does, and the fumes are odourless and colourless. I am perfectly happy to keep using WW type alloys and …
Lee Lead Hardness Test Kit Microscope Stand - Very Helpful Tool
2020年7月6日 — Last week I got this stand designed to hold the Lee lead hardness test microscope. The thing is really helpful for holding the scope still and adjusting until the picture …
25:1 lead/tin. What Brinell.? - Cast Bullet Forum
2015年9月12日 — Checking hardness to check or verify that you have those alloys is only as accurate as your mix and your measuring tool. In actuality, simply using 25 parts or 30 parts …
.44mag bullet hardness. - Cast Bullet Forum
2010年5月4日 — Before I invest in molds for the .44 .430 bullet, I would like to know if a lead cast bullet traveling at .44mag velocity will lead the bore. If I have to settle for velocities in the 750 …
Best way to use Lee hardness tester - Cast Bullet Forum
2013年2月17日 — You shouldn't be surprised either, that alloy poured into a cold ingot mold or cold bullet mold will give a false hardness reading. I use a belt sander to make rough ingots smooth …
Alloy of tin and lead - Cast Bullet Forum
2016年12月21日 — For full charge loads in 9mm, .45 ACP and .357 Magnum you want to use something other than a tin-lead alloy. 1 to 30 tin-lead is about 9 BHN and works well for …
Lyman #2 - Cast Bullet Forum
2013年2月10日 — The 5% tin and 5% antimony with 90% lead in Lyman #2 has been the most popular hunting alloy for cast bullet shooters for well over 100 years because it has a very …
Powder coated bullets: What max velocity can be run and what …
2023年12月7日 — Hardness still matters the faster you go. Once up over 2K it shows its ugly head just like regular naked bullets. But not as bad. I have shot my 223 past 3Kfps but accuracy …