Small project for coming winter months; working on a new type of lube and possibly new lead bullet design. Yeah, I know, the whole world needs desperately new bullet lube, like new mouse trap, but I would rather spend time working on that, than sitting all day long in front of TV or computer.
Anyhow, I am BSME (now retired) and have access to odd lubes, so when I saw their data, I've got idea to make a new bullet lube. The goal is to get lube for lead plain base bullet (no GC), cast from straight wheel weight, that could be pushed to the maximum velocity, but without leading problems. I am going to do some testing, loading to maximum SAAMI loads, using my Redhawk and Bisley, both 44 Magnum, both 7.5" barrel, to see how many rounds could be fired before leading eventually develops.
First, I will use MP 432-265 SWC (H&G #503) and see how fast I can go using new lube, or lubes, if I have to adjust formula. In addition to new lube, I will also try a new bullet design.
I would appreciate if you could list following data for maximum loads, using bullets cast from straight wheel weight, you actually tried:
- Bullet type (mold type) and it's weight
- Powder type and charge (weight)
- OAL of loaded cartridge
- Revolver model and barrel length
- Velocities you are getting
- Number of rounds fired before leading started
- Accuracy on 25 yds
- Eventual comment
I need noted info to have starting point(s), so I can compare results I am getting with yours.
My apology for being tight lipped at this moment, I don't want "jump the gun" before having some hard facts to show. But when everything is done (hope, it wouldn't take more than month or two before I get mold), I will let you know. If nothing else, it should be lot of fun.
Anyhow, I am BSME (now retired) and have access to odd lubes, so when I saw their data, I've got idea to make a new bullet lube. The goal is to get lube for lead plain base bullet (no GC), cast from straight wheel weight, that could be pushed to the maximum velocity, but without leading problems. I am going to do some testing, loading to maximum SAAMI loads, using my Redhawk and Bisley, both 44 Magnum, both 7.5" barrel, to see how many rounds could be fired before leading eventually develops.
First, I will use MP 432-265 SWC (H&G #503) and see how fast I can go using new lube, or lubes, if I have to adjust formula. In addition to new lube, I will also try a new bullet design.
I would appreciate if you could list following data for maximum loads, using bullets cast from straight wheel weight, you actually tried:
- Bullet type (mold type) and it's weight
- Powder type and charge (weight)
- OAL of loaded cartridge
- Revolver model and barrel length
- Velocities you are getting
- Number of rounds fired before leading started
- Accuracy on 25 yds
- Eventual comment
I need noted info to have starting point(s), so I can compare results I am getting with yours.
My apology for being tight lipped at this moment, I don't want "jump the gun" before having some hard facts to show. But when everything is done (hope, it wouldn't take more than month or two before I get mold), I will let you know. If nothing else, it should be lot of fun.