OAL accuracy ?

[Wobbly]

There are several dozen medias you can try, just look at a McMaster-Carr or Grainger catalog some day. However, for cartridge brass, something between walnut shell (hardest) and corn cob (softest) does the best. Some people run a mix. You can achieve the same thing with corn cob if you simply let the tumbler run for 2+ hours.

What the wax does is lubricate, but also seal the brass and keep it from oxidizing all over again. Just pour in a teaspoon full each time. Be sure and spread it out and not dump it into one place.The media will last about 25 runs with or without the wax.

Happy days !! 

[1SOW]

http://www.drillspot.com/products/521055/econoline_526040g-40_40_lbs_blast_media
Delivered free, probably no tax, depending where you live
Walnut also available at similar savings.

[Wobbly]

One other bit of advice is that it took me a long time to realize that the Dillon tumbler had an "optimal fill" point. What I do now is have the media filled to within 1/2 inch of the bowl. Then, with the cover still removed, turn the unit ON and start sprinkling in brass. I keep inserting brass until the brass starts coming back to the top of the media in a boiling motion. It seems the brass not only has to vibrate, but also circulate inside the bowl to get really clean.

The typical Dillon CV-750 tumbler takes 600 pieces or more to operate correctly. I also have one of the older CV-2000 tumblers and I can only run that big boy about once a year because it simply takes too much brass to operate.

I suspect that's your issue. The Lyman, being smaller, is simply happy with a smaller volume of brass.

Try that. 

[2bfree]

Thanks for the advice. When I did my test I dumped the corncob media out of the Dillon CV 500 and filled it with the Lyman Tufnut media, only about half way. I will make sure it is circulating as you suggested. The Dillon is larger than the Lyman 1200 that I originally bought, the Dillon also makes half the noise, a big plus. I saved the corncob and will try it with the Nu Finish.

[Wobbly]

....the Dillon also makes half the noise.....

They're all quiet when you run them outdoors like you're supposed to.

 

[2bfree]

Wobbly, Just have to ask why ? it is a closed tumbler so dust is not an issue.

[Wobbly]

Wobbly, Just have to ask why ? it is a closed tumbler so dust is not an issue.

Because at some point you have to take the top off and see "if it's soup yet" and/or separate the media from the cases.

[2bfree]

Ok, so it's ok to run it in the house but take it out to separate it outside. My problem is if I ran it outside. my shop, I would probably forget about it till that night after I go to bed and suddenly remember. It must be an age thing Thanks

[Wobbly]

That's why they make Aricept and electric timers.