Wow, different powders burn at different rates in different calibers! Max charges differ in different manuals! Having 25 manuals will (apparently) change powder burn rates! Only Lyman manuals are worth having! You have to look at burn rate charts or you’re an idiot or worse!
I’ll just address the latter. Burn rate charts are generally close to worthless when comparing powders. First, they are relative not absolute, and just because two are next to each other in the chart doesn’t mean their burn rates are almost the same. Powder #21 may be very close to #22, or it may be quite aways away - you don’t know. Second, their positions are developed in a “bomb”, not a gun barrel with a constantly increasing volume - big difference with obvious impact in a firearm. Third, experienced handloaders know that powders close to each other in burn rate may switch positions in different calibers.
It’s fun to make observations like the OP has done, but overthinking topics like this never resolves anything. Neither does insulting other posters…
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