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Path: ...!2.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail 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 Organization: A noiseless patient Spider Lines: 45 Message-ID: <utt61n$1dei4$1@dont-email.me> References: <lyr0jk64l5.fsf@void.com> <ulnh2r$32u8d$1@dont-email.me> <lyle9sfv8d.fsf@void.com> <ulnpes$31j9c$1@dont-email.me> <lybkaoe9k3.fsf@void.com> <ulv0li$jq9k$1@dont-email.me> <ulvo3u$no9l$1@dont-email.me> <un3dco$35v01$1@dont-email.me> <ly4jfq17re.fsf@void.com> <utocqr$5pqd$1@dont-email.me> <m1o7b49gna.fsf@void.com> <utq5jg$jkqj$1@dont-email.me> <utq6hv$jr2t$1@dont-email.me> <utq8qb$kala$1@dont-email.me> <utqemq$ljkr$1@dont-email.me> <unh10j148kj4t41mfgtjmh73m32q9pcjmg@4ax.com> <utqlph$n3sn$1@dont-email.me> <utsm0i$17uo6$1@dont-email.me> <utsop8$1ajqh$1@dont-email.me> <utsp7d$1ak9m$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 26 Mar 2024 01:48:56 +0100 (CET) Injection-Info: dont-email.me; posting-host="60d0564f56450041bf85c06037dc0880"; logging-data="1489476"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+SfP+NjbXweuJAoyqW1r0K6nUUdxDP3FM=" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 Cancel-Lock: sha1:44r8fLKmgnYGWi3edufedttcGlE= In-Reply-To: <utsp7d$1ak9m$1@dont-email.me> Content-Language: en-US X-Antivirus-Status: Clean X-Antivirus: Avast (VPS 240325-8, 3/25/2024), Outbound message Bytes: 3763 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