5 replies to this topic

[geezlebeef]

hi guys, my current project is a black powder pistol,i do have experience with firearms however they have all been encased rounds,so my question is : how are black powder grains measured out as it is very important to get the measurements right.Any help would be much appreciated.Thank you.

Edited by geezlebeef, 30 September 2009 - 10:09 PM.

[cooperman435]

WOW so angry dude! why the shouting?

[mike_au]

Yikes! My eyes aren't that bad

If you are using riced BP (pulverone) you will need to measure your powder by weight. Normally for firearms people will corn their BP to get a consistent 1.7g/cm^3 and they can then measure by volume.

Or did you mean how do you measure how big the actual grains of powder are rather than how many you need? If so, you run them through mesh screens of various sizes.

[phildunford]

Unless I missread the post, I think all he is asking is how to weigh black powder in grains. In which case the answer is buy one of the cheap and accurate powder balances used by reloaders - they measure directly in grains.

Here is one by Lee that you can get in the UK:

Lee Scales

[spanner]

Unless I missread the post, I think all he is asking is how to weigh black powder in grains.

Some conversions:
1 pound = 7000 grains
1 ounce = 437.5 grains
1 ounce = 16 drams
1 dram = 27.344 grains
1 gram =15.4324 grains

[Potassium chlorate]

1 grain=65 milligrams. That must be the simplest way to measure it with a modern scale.