I would like to calculate the volume of certain weights of various powders. Is there a chart of powder densities?
I am developing a load for a 6.5x47 (AR). H4350 seems very popular. I had IMR 4350 on hand, so I decided to use that to fire form the 100 pieces of new brass. 41gr seems to be a ball park load. I am finding that down to 40gr of IMR4350 is compressed, and I have a time getting consistent seating depths due to the compression. I would like to seat to 2.7-2.8 OAL. I concluded that the H4350 is denser than the I4350.
I am about to complete the first round of firing with the new brass, and am looking at what is the best powder to develop a load with. Most of the posts in the Reloading Depot are using 123gr or 130gr bullets. I am using 142smk. Most are using longer barrels. I am using a 22” barrel.
Would like to get >2800fps. Pushing a heavier bullet down a shorter barrel than most, I think I need a faster burning powder, and a denser powder to be able to get enough charge to get the desired velocity. The popular powder in 6.5 seems to be H4350, but I would like to try H414, or N540 to get the results I want. But don’t want to spend the time, if the desired powder charge is compressed at 2.7 OAL.
Is there a powder density chart that I can use in conjunction with the burn rate chart, or a software app that can help me predict what powder does what, before I spend time, money and barrel life randomly picking powders based on internet posts?