Small-scale trials of shot reclamation - 01/13/08 09:02 PM
Attempted diy shot reclamation today.
The "ore": Approx. fifteen lb. of obvious surface deposits of shot picked with flat coal scuttle from local trap range, most of it at about 80 yrds. out on a dead line to station 3. This range has beeen scraped for reclamation in the past and the soil is sandy. Almost no overburden of leafmold, pine needles as the fine sandy soil appears uncongenial to weeds or grass and allows scouring by wind and water.
The apparatus: 5-gal. PVC bucket cut down to 6-inch depth; 1 1/2" hole in bottom; four legs 30" lgth attached to raise it above second PVC bucket. Shop vac, leaf blower.
The result: 1 lb. 13 oz. of shot mixed with light-colored quartz/quartzite roughly the same physical size as shot and apparently of sufficient wgt. to not be deflected or winnowed by air blast. Shot vac had insufficient volume and speed. Leaf blower had more than enuf speed and cfm and worked best on low speed as high speed deflected shot as well as debris outside the path of fall. Hole in upper bucket was too large; too high a volume of material thru air blast. Reduced with duct tape to get a smaller volume thru air blast.
If there's another attempt, I'll make a sloping chute with a 3-4" wide mouth above the catchbucket and use compresser blowgun with a wide mouth attachment plus an adjustable positioner (horizontal board on which I can move the blowgun) to get better control of airstream. There is too much silica (Moh's hardness 7) in the shot to make me comfortable with the barrel-scoring potential even in a petaled shot-cup. I'm now wondering if any other separation process is possible except for the old "This is a lentil and this ain't"? I doubt that seiving or screening is possible because of the close proximity of size and mass of the shot and the remaining particles of sand. Thought about panning with a greased pan but here again the difference in particle magnitude and mass is too small. Also possible that the relative irregularity of the quartz particles may mean that a "Greener" shot trowel with precisely the right size divots would tend to select shot over the rocky inclusions. I may have to stake out an invisible tarpaulin in the fall zone LOL! I'm not worried about roundness as application would be skeet. I'm also not worried about graphiting to get the stuff to flow thru a reloader as a dipper will work for small scale reloading. I am a bit worried about which set of barrels gets sacrificed to the experiment.
jack
The "ore": Approx. fifteen lb. of obvious surface deposits of shot picked with flat coal scuttle from local trap range, most of it at about 80 yrds. out on a dead line to station 3. This range has beeen scraped for reclamation in the past and the soil is sandy. Almost no overburden of leafmold, pine needles as the fine sandy soil appears uncongenial to weeds or grass and allows scouring by wind and water.
The apparatus: 5-gal. PVC bucket cut down to 6-inch depth; 1 1/2" hole in bottom; four legs 30" lgth attached to raise it above second PVC bucket. Shop vac, leaf blower.
The result: 1 lb. 13 oz. of shot mixed with light-colored quartz/quartzite roughly the same physical size as shot and apparently of sufficient wgt. to not be deflected or winnowed by air blast. Shot vac had insufficient volume and speed. Leaf blower had more than enuf speed and cfm and worked best on low speed as high speed deflected shot as well as debris outside the path of fall. Hole in upper bucket was too large; too high a volume of material thru air blast. Reduced with duct tape to get a smaller volume thru air blast.
If there's another attempt, I'll make a sloping chute with a 3-4" wide mouth above the catchbucket and use compresser blowgun with a wide mouth attachment plus an adjustable positioner (horizontal board on which I can move the blowgun) to get better control of airstream. There is too much silica (Moh's hardness 7) in the shot to make me comfortable with the barrel-scoring potential even in a petaled shot-cup. I'm now wondering if any other separation process is possible except for the old "This is a lentil and this ain't"? I doubt that seiving or screening is possible because of the close proximity of size and mass of the shot and the remaining particles of sand. Thought about panning with a greased pan but here again the difference in particle magnitude and mass is too small. Also possible that the relative irregularity of the quartz particles may mean that a "Greener" shot trowel with precisely the right size divots would tend to select shot over the rocky inclusions. I may have to stake out an invisible tarpaulin in the fall zone LOL! I'm not worried about roundness as application would be skeet. I'm also not worried about graphiting to get the stuff to flow thru a reloader as a dipper will work for small scale reloading. I am a bit worried about which set of barrels gets sacrificed to the experiment.
jack