I'm not sure. I've mixed it up 9:1 and used that on 9mm brass (9mm works without lube, but lube helps) but I have been afraid to try it with rifle brass diluted that far. I'd probably go 4:1 or 5:1. (I think 9:1 is okay, I'm just chicken. 10:1 might even work)zxcvbob, what's the ratio of castor oil to alcohol?
in the end it was the lanolin in the Go-Jo & D/L I stopped using them and now use a orange pumice hand cleaner no lanolin.
If I were not resizing batches of 1000-3000 casings at a time, this would be a good option....When I became serious about reasons my SD's were not 0 I started measuring my brass, before, during and after the sizing process, a real eye opener! One operation that was changed was case lubrication. I now use the same Lano that a dairy used on teats to do the case body, a small dab will do. 3in1 oil is used of the case neck, just enough to show a shine, and that is all, no dents in the case. The measurements show this works. No need for spray bottoms, ratios, or hand cleaner, (my hands are always soft).
Chemicals do not cause warts. Warts are caused by a virus (see the attached link).Kind of off topic but I must post this, its true, was expensive & insanely painful.
About 30+ years ago I had my auto shop / salvage yard, I kept cans of Go-Jo & D/L and various hand cleaners around.
I started getting warts real bad, like 20-25 on each hand and they had grown large, slip with a wrench tearing one off and it bled nonstop, went and had them burnt off (PAIN) was intense on ride home, by the 3rd visit say 10 months from the first visit, the gal said listen, you are putting your hands into a chemical causing this - we discussed what I did and various chemicals, in the end it was the lanolin in the Go-Jo & D/L I stopped using them and now use a orange pumice hand cleaner no lanolin.
My younger son also started developing warts on his hands from the use of these products - he stopped and the warts went away.
Just a heads up, would hate to see anyone endure the misery I went through, 3 times like 40 - 50 warts each time very ugly.
Others may use D/L or Go-Jo daily / daily we just had issues with the lanolin, maybe wear gloves if you start getting tiny developments.
10% castor oil by volume to 90% alcohol. I don't think it matters what kind of alcohol as long as it's dry. I used 91% rubbing alcohol. But I don't know if that's the right mixture or if it should have a little more oil; I didn't experiment with it much.zxcvbob, I want to be sure I understand your ratios. 9:1 is alcohol to castor oil, right?
Some time ago I made a mixture using 10% Lanolin "ointment", not liquid, in 91% Isopropyl alcohol. Lanolin is not soluble in water or alcohol but if shaken, it forms a cloudy solution that eventually separates again. I used it in a manual spray bottle. It worked really well on rifle cases, but it sat unused for too long and the lanolin stayed on the bottom in a mass that would no longer mix when shaken. So your Castor Oil suggestion sounds goodenough foe me to experiment again.