On Thursday 13 March 2008, John Thornton wrote: >On 13 Mar 2008 at 9:06, [EMAIL PROTECTED] wrote: >> I use one for shell cleaning and it works nicely, just give it a few >> hours. I have another bowl I use for moly-coating bullets as you >> shouldn't contaminate the cleaning bowl with the moly. > >If you don't mind me asking what kind of shells benefit from a moly coating? >We reload everything from 223 to 45... > Generally, the rifle calibers benefit, as it imparts a bit of lubrication to the bullet as it passes through the barrel, and purportedly reduces barrel wear. (but barrels wear from burning the steel at the throat and moly won't stop that) I can see about a 50 fps improvement in speed on my chronograph, and a slightly lower std deviation to the speed. One can also give the barrel a coat, and with a clean barrel, it might do some good there too, but it didn't do anything for the accuracy which it was supposed to help. But, when I finally got the barrel cleaned out well enough to see what I had, what I had was a bunch of deep rust pits in the last 1.5" to the muzzle. That's either new barrel time, or cut it off and recrown. My little lathe wouldn't let me cut more than about 1.25", but cutting it off that much took a 5" group down to 1.5". I assume, since WV always schedules deer season in the middle of a *#@&^$# monsoon, that I must have left a few drops of rain in the barrel sometime in the past. I really should do 2 things, one, take it down to Douglas in Charleston for a fresh barrel (its probably got 3500 rounds since it was fresh in '72) and learn to shoot through a friggin balloon stretched over the muzzle to keep the rain out. :)
>> For the deburring etc, I haven't tried it as my own HF cement mixer >> still gets some use as a cement mixer around here, but I sure like the >> idea. Daytime only use though, its gonna be noisy unless there is >> enough media in it to cushion the parts falling off the stirring fins. > >For deburring and cleaning in a rotating drum you would want some backward >facing fins about 2-3 inches long so as to only lift the material up about > 1/2 the way up the side of the barrel or less. This keeps a nice steady > rolling motion instead of a falling from the top which will damage parts. > I've built about 20 of these for inline cleaning of parts at about 1/2 ton > per hour rate of parts. Kinda big but it is the same for smaller ones. Not as tall a fin as what is in the HF mixer then.. > >John Thanks John. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) A penny saved is ridiculous. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
