Thanks, FITASC, that is probably the list from which I obtained my numbers; I recall the color scheme, and mine had 149 rather than 148 powders.
I compared my inventory list with the one you posted and there are differences, but really not significant changes. My 5 powders in Numbers 101 through 110 are the same as my 149 list. From 111 through 128 my 8 powders were one number higher, e.g., H4350 is 116, on my list, it is 117. But that is NOT an exchange - all of mine are in the same position relatively speaking. For example, on the new list RE19 is 123 and IMR 4831 is 124. On my list they are 123 and 124, so no change in "burn rate" with respect to each other.
But any newbies on this forum should understand, that this is only a gross reference. If I'm looking for a powder for my .270 for example, and in
the Lyman 50th handbook I see RE22 provides a higher velocity and lower pressure than H4831, the list will reveal RE22 is slower, which simply might do nothing more than explain it.