Author Topic: Powder choice - Load density (Read 417 times)

BrushBuster · « **on:** December 10, 2003, 07:30:54 AM »

When striving to achieve 100% load density through powder and load choice, how can we make a selection from among the different brands of powders with similar burn-rates without buying each brand to compare?

Is there a manufacturers specification or volumetric chart available that compares displacement for the different brands and would help to cut down on the guesswork?

Failing that, has anybody gone through this with R-19 as their initial powder choice, and could give me the benefit of their experience?

ricciardelli · « **Reply #1 on:** December 10, 2003, 08:36:49 AM »

Load density not only depends on the powder. It also depends on the case.

jgalar · « **Reply #2 on:** December 10, 2003, 11:59:06 AM »

Modern Reloading by Lee has a chart in it that lists a volume index number for each of the powders. Muliply the charge weight by the number to get the CCs.

BrushBuster · « **Reply #3 on:** December 10, 2003, 04:46:27 PM »

Jgalar, that sounds like just the ticket. Ill track that book down.

Hope it has a fairly comprehensive list of powders?

jgalar · « **Reply #4 on:** December 10, 2003, 04:56:40 PM »

from a quick look...
powders listed:
common granulations of black powder
accurate arms
scot
pyrodex
alliant
hodgdon
imr
nobel
norma
winchester

looks to be a fairly complete list