All10Fingers Posted April 27 Posted April 27 This has probably been discussed here previously but I didn't turn up any answers in my browsing around. My ball mill ate the dust over this winter and I find myself unable to make fast BP. I've made a few batches with screening and wet mixing, but it's only...meh quality compared to the milled stuff. I've been reading here and it seems many of the more experienced people are using kp. I've never made it before but I might give it a shot. My question is, does kp need to be milled like bp? Or is a thorough screening and/or bag mixing adequate for desired performance? Side note...I do have a vibratory rock polisher laying around. Might that substitute for a rotating style mill?
Carbon796 Posted April 27 Posted April 27 (edited) If you're talking about using it for burst. In your machine wound core " shells ". They will just be more of a salute type effect, than they already are. If you're talking about using it as lift. If you put a heavy enough shell on top of it. You'll have a salute mortar. If you're talking about using it for burst in ball shells. Enjoy. Yes, it's just screen mixed. Usually coated on to rice hulls. Edited April 27 by Carbon796
Zumber Posted April 27 Posted April 27 3 hours ago, All10Fingers said: My question is, does kp need to be milled like bp? Or is a thorough screening and/or bag mixing adequate for desired performance? Remember only BP made of potassium nitrate, Sulphur and charcoal is ball milled with all safety measures and remote operation ,besides it can be used to mill individual chemicals into fine powder with cleaning of media and jar neatly every time. You MUST NOT mill kp based BP or any composition except bp in ball mill. You should screen mix KP and fuel. It is being used as a burst charge and should be coated over rice hulls/cotton seeds etc. No any information regarding to be used as a lift charge.
All10Fingers Posted May 2 Author Posted May 2 Ah shit I forgot about lift... Well, I think I could get away with my unmilled BP for lifting. Even being unmilled it's worlds better than the earliest stuff I made. Plus since I primarily load shells cannon style by pouring the lift directly into the mortar and dropping the shell on top. And drilling a hole for side fusing. Im able to make my shells the exact same diameter as my launcher. Which makes a tight gas seal. And provided the bottom is secured securely it'll get up there. Every time.....both times. But I'm happy to get two very informative responses and not getting scalded for not already knowing Maybe I should just fix the damn rock tumbler
Almostparadise Posted May 4 Posted May 4 (edited) Fix the damn tumbler. Necessity is the mother of invention and all that but a pyro w out a ball mill is like a chef w out a kitchen aid (mixer). Plus you won't have to endure the feeling of emptiness when you began to move on w out it. When your going through your new, modified procedure you'll always be reminded that "hey, my ballmill used to do this job". 😢 lol Edited May 4 by Almostparadise
Recommended Posts