Originally Posted by HARPERC
You don't say what you are trying to achieve, and I'm thinking your not going to find one answer. I'm guessing your talking about the slower burning powders, but there are powders out there that are better suited to reduced loads than others. I just got done shooting some 168, an 180 grain bullets in a 30-06. 29-35 grains of 5744, or about 50% load density.
Not really looking at any one specific cartridge...it's more of a question aimed to aid in the selection of powders. If you're trying to maximize both velocity and accuracy is there a load density range that one should strive for or stay away from when selecting a powder for a specific cartridge/powder/bullet combination?
270WSM 130gr bullet
IMR 4831 65gr 3200 ft/sec 97% load density
Varget 54 gr 3150 ft/sec 81% load density
In this example velocity will be close to equal but is the diffence in load density enough to have have a material difference in accuracy potential?
Is it advisable to stay away from powders that will result in an 80% load density in favor on one that offer a load density in the high 90% range?