Does relative powder burn rate chart containing powder's shape/composition info exist?

pell1203

Stay Focused!
Full Member
Minuteman
  • Dec 27, 2007
    1,444
    470
    Bellevue, WA
    I am searching for a powder burn rate chart that includes the individual powder's shape/composition properties (i.e., spherical, extruded, etc.) for each listed powder.

    So far I am finding only burn rate charts and no cross reference lists showing powder to shape/composition properties. And of course, nothing that combines relative burn rate and shape/composition directly. I'd like to use a powder measure to increase round production and knowing this information to evaluate metering capability would be very useful.

    My question is, has anyone ever come across a summary chart incorporating the powder's relative burn rate ranking alongside its shape/composition information directly?

    Appreciate any help!
     
    Over-thinking this my friend. In my 38 years of reloading I have found that the one thing that controls your measures ability to throw consistent charges is the consistency with which you operate the handle.
    My RCBS Uniflow is as accurate (maybe more so) as my Harrell's that cost over twice as much. And that is a true statement with ball, extruded, etc. shapes of powder.
     
    In Quick Load you can access the actual burning rate (not just a relative rating), density, and bulk density plus the description and often a photo as well.
     
    In general, powders with fast burn rates have more surface area relative to their volume. For example, a flake powder is extraordinarily faster than a cylindrical (extruded) powder. This can be seen on the chart, if you know what kind of powder each one is.