highdesertranger said:
Danny count the number of bird shot you put in then in the end count again, some guys paint the shot a color that will stand out to make this easier. recovery must be 100% if it's not you are losing gold. another thing use number 8 shot. another tip why don't you just build a dry washer the plans are readily available on the internet. dry washers are a proven tool for gold recovery. if you are going to the RTR I will have my Keene dry washer you can see how it works. highdesertranger
I seen a dry washer used and it seemed slow and quite dusty. The large rocks also had to first be separated. This just started out as an experiment. I live in a desert area, so I wanted something that didn't use up water. I figured if it caught lead, gold is even heavier. I got this idea from a gold pan that everybody uses to do their final work. By shaking the pan back and forth the gold is able to sink. The water is used to wash off the top layers and leave the gold. I figured if you could shake a box like a dry pan, the gold would still sink. The water would be unnecessary as the weight of the incoming material would force the light stuff off at the end of the box. It will process a 5 gallon bucket of material in less than a minute. A lot less. I used the type 2 gravel in my driveway for the test. One thing amazed me during the process. No matter how large the rock was it would immediately pop to the top and float on down. I always assumed rocks were heavier than the dirt for some reason. I guess they are less dense.
At the end of a run while it is still shaking, I raise the right end until there is just a little bit of material left in the box. I then transfer it to a pan for the final final. I also found that using a controlled air source like the output from a small vacuum cleaner works even better than water for removing the light stuff in the pan. it takes it right down to the lead pellets. patience plays a part here. too much air and the lead also gets blown out.
On the RTR, I was hoping to do that, but I don't know it will happen. I have a 30' Class A, but it needs insurance and registration. It was last registered in Ca, I am now in Nv. I have a 1/2 ton flatbed I have been tossing around different designs for a camper to fit on the 7'x7' space. It looks like a Gypsy Vardo bowtop will be the winner. something like
https://images.search.yahoo.com/ima...=yhs-mozilla-002&hsimp=yhs-002&hspart=mozilla
The bed part would have to go over the cab, so I need to figure that out. I am also looking at vans and class c's on craigslist.
I have some pretty accurate weight scales that I use for reloading bullets, so maybe I will set up the shaker and do a better test, or like you suggested just count them.