A reguar post hole auger won't work in Caliche??
We've got some real tough Lava rock up here & most guys with the Auger setups on their Jeeps, have rock bits for them & they just punch right through it.
Lee
Can you set up a jeep and an auger for $500 ?
GTC
No, you hire someone who already has one to do the work.
I bet if you look in your yellow pages, you'll find a fencing contractor who can do the work for $500 or less & since its for a good cause maybe even cheaper or free if they are into shooting.
Most guys who drill post holes for a living would jump at the chance to only have to drill a foot deep.
Lee
