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Old 09-29-2012, 09:16   #22
kf4zra
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Quote:
Originally Posted by SCmasterblaster View Post
I say again that tumbling the live rounds will very likely break apart the propellant granules and thereby greatly increase the pressure. If you must clean the brass, just use Brasso and a rag on each one.
the brasso after it has been on the brass for an extended time makes the brass more brittle due to the ammonia. If you are going to shoot right away and not reload, its not an issue

i have tumbled and shot thousands of old rifle rounds from the 20's thru the 70's and never had a problem,

worked for a gun shop for a while and the surplus ammo that came in that had surface rust or discoloration was given to me. tumbled it for a half hour and blasted it.
762x54r, .303 brit, and 8mm mauser were the main calibers.
shot it in enfields, mausers, mosins, svt-40, hakim, FN49, and i converted my 1919 to 8mm.

I have dumped the powder before and after tumbling and cant tell any difference. the little rods of powder (like small pencil leads from a mechanical pencil) in the 54r and 8mm were still in tact and the cordite strands in the .303 was still solid. They shot the same, the same stinky/acrid smoke of the commie/fascist ammo was there and the same ash from the 303 was there.

see above argument regarding low vibration trucks, etc
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