Several years ago I bought a box of 500 cast .38 calibre pistol bullets. They were lubed with conventional lube (one grease groove) but they also had a coating of mica on them. I was wondering what the mica was for, and is it a good ideal to use it on your own cast bullets with conventional lube? I can see the use for it on tumble lube bullets, but am curious as to why they would use it on conventionally lubed bullets with a grease groove. Thanks, Gary
Mica has other uses for the reloading enthusiast. I brush it in the primer trays and chutes on my presses and the sliding surfaces of my Lee Auto Disk powder measure. I also use it on the pivot of my balance scale. Mica is the dry lube used in my Frackford Arsenal Inside Neck Lube Kit.
I lucked out as my friends wife gave me a bunch. Her lab uses it in cosmetic product manufacture. Great stuff for a dry lube on plastics.
I use it quite a bit with 50/50 and other lubes. It keeps your bullets from sticking together, helps seat them, and makes a good lube down the bore. Careful with the dust though, breathing that will choke you!
It's a good all around dry lubricant.
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