I see the pressure flaking of serrated gun flints is a topic of your personal interest. Given their long history it is curious that more are not made that way. http://shilohrifle.com/forums/viewtopic.php?t=24998What I have found Tom is that a straight level edge is not a strong edge. The serrated edge is what works best and longest on a gun flint. Same is true on an arrow point or flint knife blade. The scarps between the serrated points are just as sharp as flint can be knapped.
The serration is what gives a flint edge it's strength and longevity.
I don’t know about “ harvesting “, but sometimes I will pick up a good-looking piece of dark flint or white chert if i see one when I’m out and about and bust a few spalls off of it at some later date. A small percentage of these spalls will have a halfway decent shape that will fit one of my locks. I have not had the time to learn to make them look really good like I hear Rich Pearce does.Seems like a natural adjunct hobby for anyone with an interest in muzzleloaders. Is there anyone on this forum who has pointers to share? Thanks in advance.
I would do my own but have never figured out where it lives. Elusive stuff. ;-)
It is all over the place in nuisance quantities in Stone County, MO. Northwest of Branson between Crane and Galena. Lots of other areas within 20 miles or more in all directions from Crane. You can see those white and gray rocks from the size of a cigarette pack up to cantaloupe size in cut hay fields and pastures just driving down the road. If I were smart enough to figure out how to post pictures I would post a few.
From a now defunct ml forum I got into quite an argument about this issue. So, I wrote to the geology department of several universities and my state geological commission. Responses I got said if you soak flint in water for 500 years, it might penetrate to a depth of one micron. I haven't tried that. Let me know what you find out.