DD said:
Moose tell them when you go in the fall, that fire in the hole is for blowing explosives in the mine, fire is to shoot a cannon!
Might be wise to ask WHY do the explosive foks yell that phrase?? And the same question for the burning fuse shooters??
One of the key differences between "friction fuse shooters" and the fuse sold by:
http://www.cannonfuse.com/store/pc/Fuse-All-c2.htm is the first can be accompanied (or prefaced) by the shout "fire". The latter is/can only be accompanied by some shout warning all the folks that might show up there is a "fire in the hole" (a lighted fuse actively burning)
and it IS going to go off sometime soon. The 25-30 second/foot variety in a thick-walled mortar is debateable about the "soon" part... I use a faster burn rate for that guy personally.
My own experience has been with Mountain Men sponsored shoots where most all use slow burning fuse and shout "fire in the hole". Further, my own experience has been to observe that that shout focuses attention on the piece being fired, people walking about DO NOT approach the lit piece and most folks close by who are not plugged have time to cover their ears with their hands. THOSE OBSERVATIONS ARE CONSISTENT WITH THOSE SEEN AT EXPLOSIVE SIGHTS WHERE FUSE (in lieu of electric caps) IS BEING USED.
I see advantages to "fire" and friction fuses (no time for some fool to approach or go out in front of the piece) but the "fire in the hole" folks are accurate in that there truly is a "fire in the/their hole" (least that IS what most of my vents appeared to be last time I looked...).
GOW/George