That’s very interesting. Now I’m curious as to how easy it is to get inside the machine to clean powder residue out.
I just use a Q-Tip with a bit of "Metho"...{denatured alcohol} to clean the induction plates that are visible and accessible from the hole that takes the standoff collets.
This really was ever only a problem when I foolishly followed some online advice about using some car wash with wax as a means of keeping the cleaned cased from tarnishing.... DON'T EVER DO THAT!!
At least not if you are going to anneal the cases be it in an AMP machine or any other heating device...
The wax will burn off and you will be choking from the fumes and it will make a mess inside your AMP...
Annealing clean brass is really the way to go as every load will start with "new" brass... Primer pockets clean, inside and outside of brass "Factory New"... No carbon residue anywhere!
The bottom of the AMP annealing chamber is well below the case neck and again is easily cleaned with a Q-Tip {the long stem ones that the Quacks and hospitals have are really good for this}
I have been adding 10ml of BoreTec sonic cleaner, a tiny amount of Lemi Shine, squirt of dish soap and hot tap water to my wet SS pin tumbler and that seems to provide the tarnish resistance finish I want and does not poison you with the fumes nor contaminate your annealer...
I also pre-soak my cases overnight in HOT/boiling water, good squirt of dish soap {does NOT have to be Dawn...!} a tiny sprinkle of Lemi Shine {I use one of those weensy little spoons that the airlines give out with your coffee-or just the amount that will sit on a 1/4" of the handle end of a teaspoon} and 5ml of the above mentioned BoreTec sonic cleaner. You will never need to tumble more than 1 & 1/2 hrs for perfectly clean and shiny brass.
Don't over load the tumbler, think of adding another pound of pins to the lot you got with the machine and remember less time tumbling will mean less chance of belling/peening the mouth of the cartridge cases...especially 17cal-7mm or neck turned brass.
Always a good idea to lightly remove any burrs inside/outside of the necks anyway just to solve that problem that comes when you load a round that was a bit peened and now has a slight trumpet mouth from the projectile entering the case and now you cannot get to chamber....
Really embarrassing and maddening when at a match....!!!
Been there, Done That...!!
Cheers, FD
