On Saturday, September 21, 2013 7:07:14 PM UTC-4, Karl Townsend wrote:
On Sat, 21 Sep 2013 17:24:20 -0500, "Pete C."

wrote:





Karl Townsend wrote:



I plan to use a press brake bottom die as a "V" block. Then two

barrels clamped and held straight. Top one is just scrap for a guide.

bottom of top barrel bored out just a bit to hold the button. Put

button in bottom of top barrel and the long HSS push rod. Clamp it all

together in line. Press a bit, retract, put in short piece of HSS -

maybe 4", press a bit, put in another HSS stick, repeat.



Karl



How will you ensure the button rotates at the proper twist rate? I know

it should self rotate, but with all that force pressing on the back

there had better be some good lube to let it turn.



The head of the pusher needs to be ground to 0.25" and there's a

special pressing lube to keep it flooded in. Other than that, its on

its own.

does that 0.25" head fit into a socket on the button? Is there some sort of thrust bearing?

I have to say, this is a process totally foreign to me, but I have long wondered about it. I also pretty surprised that nobody in this group seems to have tackled this before. Lots of gunsmithing going on, but this is the first barrel rifling I can remember.

I'll know a lot more about this after doing it.

So will the rest of us, I hope. Really adventurous project. It'll also be interesting to hear how well it shoots.

The author of the

book "Rifling Machines and Methods", Cliff LaBounty, contacted me

today with suggestions. Looks like he's willing to mentor me. And he'd

like to see how folks have followed his work for a possible book

addition.

That is truly excellent. How did he find you? Did he read about it here? Or did you find him? It's always good to have a mentor, and the mentor can learn a lot from you, too.




Karl