Re: blasting smallish tunnels in hard rock

On 3/24/2024 7:38 PM, pyotr filipivich wrote:

Snag <Snag_one@msn.com> on Sun, 24 Mar 2024 18:58:12 -0500 typed in
rec.crafts.metalworking  the following:

>

I'd like to hear how that goes.  I may or may not have some knowledge of
BP being easy to make firecrackers with, and Pyrodex in the same
packaging becoming spinners or rockets instead of going pop.
>
>

>
  It's all about confinement . Lots of difference between a few layers
of paper and about 8"-10" of solid wood .

  Tamp it well, or you're likely to have a rocket launcher / cannon.
  We once made a "signal gun" for the 4th out of a bored out chunk
of maple.
 

   We are blessed here with an abundance of clay ... I was talking with a guy that has some experience with this and he suggested clay as an ideal tamping medium . There's a large flat rock right next to the stump that I might lay on top too .
--
Snag
  "They may take our lives but
they'll never take our freedom."
  William Wallace