I want to bump this...
I've had my Frankford tumbler sitting in a box for about a year, and I finally put it to work today.
As threatened, I threw an ugly ducking Glock slide in there... Nevermind how (my fault), but I have nothing to lose with this slide. So far, the steel pins are doing a good job chipping away at the misbegotten DuraCoat on the slide (not DuraCoat's fault: my fault).
I have a question about recipes:
This site says 5lbs pins, 8lbs water (1 gallon), and 2-4lbs brass:
http://www.stainlesstumblingmedia.com/tips/
Given that the Frankford tumbler holds about 15lbs of water (7 liters), it seems like 5lbs of pins aren't enough... The recommended recipe (above) should be about double to reach the Frankford's capacity (not to exceed 30lbs, total).
Finally, the Frankford pins are 0.041 or so, which is the size that stick in primer holes (so I hear). So, I bought another 5lbs of 0.047 pins from GunTap (best price I could find). So, far it's humming along...
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