Whiterabbit
12-01-2011, 12:23 PM
Hi guys,
I want to hollowpoint a couple bullets for fun. I didn't take any pictures yet, but here's basically what I did:
I cut a strip of aluminum 3/8" thick, 1" wide, and ~2.5 inches long. I drilled a hole in this piece at one end at .451" diameter (I need to expand this, but it'll work for experimentation). I then cut a slit in the strip into the hole.
The idea was that I could clamp the strip in the jaws of my mill, closing the hole slightly which would grip the bullet. I put the strip back in my clamp on the mill table and align the hole to made with the .451 drill bit in the mill chuck. Then replace the .451 drill bit with my hollowpointer drill bit, and crank out some hollowpoints.
To get pressure on the bullet clamp, I wedged a piece of paper into the chuck on that side to give some incentive to clamp down on the bullet.
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Long story short, it didn't work right away. I can't get enough pressure on the aluminum to get a good grip on the bullet. The hollowpointer bit invariably spins the bullet in the clamp.
What's a good way to make a bullet clamp that is very repeatable in positioning? At this time I'd prefer to use the mill rather than the lathe.
I want to hollowpoint a couple bullets for fun. I didn't take any pictures yet, but here's basically what I did:
I cut a strip of aluminum 3/8" thick, 1" wide, and ~2.5 inches long. I drilled a hole in this piece at one end at .451" diameter (I need to expand this, but it'll work for experimentation). I then cut a slit in the strip into the hole.
The idea was that I could clamp the strip in the jaws of my mill, closing the hole slightly which would grip the bullet. I put the strip back in my clamp on the mill table and align the hole to made with the .451 drill bit in the mill chuck. Then replace the .451 drill bit with my hollowpointer drill bit, and crank out some hollowpoints.
To get pressure on the bullet clamp, I wedged a piece of paper into the chuck on that side to give some incentive to clamp down on the bullet.
-------
Long story short, it didn't work right away. I can't get enough pressure on the aluminum to get a good grip on the bullet. The hollowpointer bit invariably spins the bullet in the clamp.
What's a good way to make a bullet clamp that is very repeatable in positioning? At this time I'd prefer to use the mill rather than the lathe.