When I was young we blasted stumps too big to pull . Stumps in areas being cleared for
plowing. You dug down a little and either drilled or packed a stick for big stumps or
half stick for smaller ones into the side of the trunk or under the biggest part of the
trunk then packed clay hard around filling the hole. Electrical caps were what we had.
The wires were run out 150-250 feet to a hand twist magneto --in old times they used a
hand push magneto. The yell-- 'cover" went out and you ducked down and covered your
ears. The idea was to lift up the stump and blow out the dirt from the bigger roots.
You could do a miners shoot which is to drill straight down with an auger, set the cap and
pack and blow it ,but that sets pieces of wood flying. You could buy the TNT--dynamite
or different brand at hardware and feed store, usually in a shed out back. There was a
form to sign-that was it. After the shot, It was my job to dig and chop certain roots
on one side. Then we chained the stump and pulled it out or tipped it enough
to chop more roots if we couldn't pull it totally. Also, the place where we bought ours
also sold black powder for blasting. I think people are still blasting stumps today.
We never used the fuses that you light with blasting caps-- we had a bunch of wire and a twist magneto. It would rattle windows for quite a ways away.