Re: Best Powder measure? Harrell?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor N TN</div><div class="ubbcode-body">One thing that makes the Harrell's so good is that it has a horizontal powder chamber. Almost all others have a vertical powder chamber that changes the amount depending on how much weight of the powder is pressing down on it. Even with a powder baffle in the powder resevoir, you're still going to have some variation. </div></div>
Whether you use an RCBS or a Culver-style measure (e.g., Harrells, RFD) both measure the powder in the form of a cylinder and both fill the cylinder via gravity. The Culver style measures fill the cylinder from the side, and the RCBS style fills it from the end.
For smaller charges, the Culver style has less surface area of the powder cylinder exposed to the pressure of gravity. Once larger charges are involved, there is a crossover point were the RCBS-type measures have less surface area exposed to gravity than the Culver type.
In either case, gravity fills the chamber.
I use an RFD, and while yes it is one of the most accurate measures on the market, no matter what the powder I throw with it my 600 yard and longer ammo has each charge hand weighed. RL-15 is one of the best throwing powders I have, scarily dead nuts on most of the time with no big swings, VV N140 is next, Varget lagging behind those two severely, and forget about it with longer stick like IMR4350 regardless of the measure.
