Our guest for this net will be Daniel Humphries, KI7NAI, who is an engineer with a great deal of knowledge on this subject. Post your questions or comments here and join us on the net.
Tonight the spotlight is on an ammunition handloading product. Anyone who loads their own ammo, in most cases, will have to own a powder dispenser. Most of the major manufacturers offer at least one dispenser. Some offer different grades with the highest often bearing the name of "bench rest". Without getting into the details of what factors contribute to accuracy, I will only say that consistent powder charge weight will help significantly in getting the most accuracy from your firearm. There are, of course, other factors, but that will be a topic for a later net.
Many handloaders don't want, and probably don't need, to weigh each charge. So, the mechanical powder dispenser will be your best bet. Most powder dispensers fall withing the "adequate" category, but for those who are looking to get the most accurate powder dispensers on the market, the field narrows considerably.
When it comes to consistency and precision, there is one powder dispenser that is among the very best. It's a little pricey, but you get what you pay for. Made in the USA and guaranteed for life, the Harrell Culver Style dispenser has few peers, if any. Sinclair International offers all models of the Harrell measures and this is what they have to say:
The Harrell Premium measure will throw changes from 6-120 grains, so it will work for just about any cartridge you load. The 16 ounce powder bottle lessens the need to refill as often (also accepts most 1 pound containers like Hodgdon, Accurate, etc). This measure has needle bearings built into each side of the metering insert to give it the smoothest feel of any powder measure we have ever tried. If you want one measure to serve all your reloading needs, the Harrell Premium will give you a lifetime of service.
Each Harrell measure is built with a quality CNC machined aluminum body and an extremely accurate “Culver Style” brass metering system. All of the measures throw with the same accuracy and repeatability, and can be dialed back to the desired charge on the click metering system at any time. Each Harrell measure comes with a clamp style mounting system, one appropriate sized powder bottle with a bottom plug and two 4" drop tubes, one 3⁄16" and one ¼" ID (Schuentzen has a shorter drop tube). There are no finer custom powder measures on the market. (http://www.sinclairintl.com/reloading-e ... 38305.aspx)