How to make a 22 boolit like this.
Any aluminum or steel plate/block can be used up to about 3/4" thick. This in the photos is 1/2" (minimum recommended)anodized aluminum that I happen to have a lot of. 2 drills will be needed, a #2 and #25. The #25 can be changed if a different size meplat is desired.
First step is to drill through the base metal with the #25 drill. Ignore the large hole on the right side of the plate.
Next step requires a bit of care. The #25 hole is the pilot hole, drill into but not through with the #2 drill. Before the #2 reaches all the way through you will want to start checking with a 22 cartridge how much deeper you need the hole. Take it a little at a time till the nose of the boolit is just proud through the other side. The #2 side is where you will insert the cartridge, the nose will protrude out the otherside. The #2 drill will be ~.010-.020" shy of breaking all the way through.
I use a gasket scraper to shear off the tip of the boolit, couple taps with hammer. I've had this one for years, I believe I got it at Autozone. It comes with 3 nice heavy duty razors which are easy to resharpen if needed. This WFN tool takes off exactly 1g.