Found this down by the Concho near San Angelo while surface huntin...found broke andice and nolan all just a few yards apart...I've heard some say firestarter, I was thinkin that or maybe a crude bullet mould from historic period, but nothing concrete on its ID. the holes are definately man made...couldnt get a close up of grinding rings on the inside of the center hole...it's really great piece, ive never found anything like it, just cant quite figure it out..

It's a keeper and would have been an excellent "fire starter " implement.
BUT I tend to a natural form that may have been put to that use. The biggest thing against man drilled is flint is very high on the hardness scale, like drilling a block of glass, tough job

right...i was thinkin that as well, it just seems too much for coincidence..ive never tried drillin through flint, but i wonder if it's the same going through the cortex as it is the rest?...Thanks for input Hal..always very much appreciated

My observation of various pieces of natural flint ( like at the Starr ranch which is 50% of the visible rock on the surface ) is that the exterior can be quite soft Limestone to the natural heavy discoloration of the pure flint that seems the same density as the interior.

I just noticed, the 2 smaller holes on your example look quite deep. Narrow and deep is even a more
difficult job for hand drilling.

Years ago someone reportedly found a flint Gorget with 2 holes " drilled " in it. To verify the possibility, I
put a piece of hardwood dowel in an electric drill then added a couple different types of sand ( for the abrasive cutting factor )....

It hardly knocked the gloss off the shiny flint..

Keep in mind that all flint is sedimentary rock, a result of the deposition and solidification of sediment ( mud ). The holes found in flint rock today may have been formed millions of years ago by worm holes, roots, snails, mussels, etc.