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From: Snag <Snag_one@msn.com>
Newsgroups: rec.crafts.metalworking
Subject: Re: blasting smallish tunnels in hard rock
Date: Mon, 25 Mar 2024 19:48:56 -0500
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On 3/25/2024 4:10 PM, Bob La Londe wrote:
> On 3/25/2024 2:02 PM, Snag wrote:
>> On 3/25/2024 3:15 PM, Leon Fisk wrote:
>>> On Sun, 24 Mar 2024 20:59:06 -0500
>>> Snag <Snag_one@msn.com> wrote:
>>>
>>> <snip>
>>>> 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 .
>>>
>>> Tannerite can make some pretty good blows too😉
>>>
>>> https://www.youtube.com/results?search_query=tannerite+barn+blow
>>>
>>
>>    Yeah , but doesn't Tannerite require a sharp impact to set it off ? 
>> Besides , I already have the Pyrodex ...
> 
> Commercial Tannerite does require a VERY sharp impact to set it off. 
> generally from a high power rifle.  I seem to recall there is a formula 
> that can be set off by a rim fire rifle impact, and a local associate of 
> mine claims there is a formulation he worked with that can be set off by 
> just fuse.  His claim is the only one I have ever heard about 
> "Tannerite", but there are lots of "explosives" formulations that can be 
> made.  Mythbusters supposedly were working on one of their dropped 
> projects when they discovered a very easy one made with very common 
> household products.  They opted to drop that project and swear not to 
> reveal it to the public.  Adam Savage mentioned it in on his TESTED 
> YouTube channel a while back.
> 

   There are formulae for sugar , stump remover , and horticultural 
sulfur ... Those compounds are usually used for "rocket motors" . Though 
as I understand they are "castable" ... probably not suitable for 
Richard's purpose unless crushed into a fairly fine (thinking FFF as in 
black powder) granule . Surface area to volume ratio is the key here .

-- 
Snag
  "They may take our lives but
they'll never take our freedom."
  William Wallace