First the cold blue, and now the brushes ... I really need to pay a visit to a gun store. Thanks for the pointers, I will really make the effort. A friend just told me earlier today that lapangan tembak in Senayan may have some gun supplies.
Anyway, just one last question. At first I tried not to ask this because I felt it sounded too paranoid, but then I thought there's some sense to it. Let's say you just had a mranggi make you a NEW wrongko and you saw some sweat dropping into the sheath. It is quite a likely scenario, considering how hot and humid Indonesia is these days. Now, salt and iron is a very bad combo ... bad enough that I couldn't resist asking this question
Is it okay to just quickly rinse the wrongko interior with some liquid to wash away the salt? Say, 95% alcohol? mineral oil? Will that damage the wrongko?