BC38
Thanks for the update. From your photo the powder on the right doesn't look like IMR 700-X to me. But I agree that the powder on the left doesn't match the powder on the right. It's a good picture I just can't get enough magnification to see clearly. If you look at IMR 4227 you will see that it's an extruded powder and not a spherical powder.

Do you think that the powder on the right could be SR 4759? It's got a slightly faster burn rate than 4227, it's an extruded powder, the data shows it's twice the size of 4227 granules and the name is somewhat close. It looks like it could be H322, IMR 4320, IMR 4007SSC or another Short Cut extruded rifle powder but those have slower burn rates. Could you look at SR 4759 on the website I linked to and let us know what you think?

Here's a link to the magnified photos I look at when I'm trying to indentify powders.

700-X
National Center for Forensic Science

IMR 4227
National Center for Forensic Science

IMR SR 4759
National Center for Forensic Science