how many "tumble" round ball after cast?

[greyhawk]

When you tumble them in a vibratory tumbler, no media or anything??   Just balls?   

How long? 

Yeah I tumble em - got LEE molds - use a heavy denium ball bag with a bit of graphite powder in - hold the bag one end each hand and rattle the balls round in there about a minute - they come out nice and shiney and will keep like that for ages - cant find the sprue mark at all - so ya can just load like swaged ball .
I keep that bag for doin it - just need a pinch of new graphite each time - e a s y !
Greyhawk

[Ludo Van den Bussche]

I throw the balls in a tin tobacco box and shake that vigorously for a few minutes ... that's enough to take out the sprue... I also used a small canvas bag that I shook and ruffled about between my two hands ... A bit more work to get a result but you do not have the noise...

[walks with gun]

   I have one wrecked leg so I walk like a paint shaker and stumble from time to time,  this is as much tumbling as they ever needed.

[Treebeard]

For a while I shot smoothbore competition in NSSA shoots and my experience both personal and observed was that dimples made a real improvement in accruracy at ranges of 25 and 50 yards.

[smokinbuck]

I just cast weigh and shoot, no problem. I have heard of a fellow that put a bunch of cast balls into a couple of paint cans and left them in his car trunk while he drove around town for a couple of days ?
Mark