Powder measure bore dimensions

[newt]

Can anyone tell me what size drill bit and how deep I need to make a hole that holds 90 grains?
I want to make a few wooden powder measures, the stock I have is 3/4" wood.
Thanks for any ideas and help!

 

[Tlukes]

Found this on another site.
http://mysite.verizon.net/tmmh/xpowdermeasure.htm
In case anyone wants to get a bit ambitious and make one, here are a couple numbers which might aid your endeavor:
When drilling a cylindrical receptacle for measuring the powder, whether it be adjustable or fixed, using a drill of 29/64ths (.453") in diameter, every quarter-inch (.250") will render exactly 10 gr-wgt by volume.
I have not tried this yet

 

[newt]

Thanks !!!!
That's exactly what I needed to know.
Now to start working on some carvings to drill holes into.

 

[strongarm]

Although these numbers are excellent, how are going to funnel the powder into the gun when you get done? After I finished mine, I carved a lip into the top and by doing that I had to use wood putty to build up the bottom to maintain the proper charge.

Food for thought. :winking: