They do that a lot with calibres that are obscure the 9,3 x57 for example only lists one weight of the obsolete 2206.
From an early lyman book 140 gr bullet
Powder start max
3031 29 31
4064 31 34
4320 32 35
H380 34 37
MV starts are all around the 2050 Mark and max around 2200 fps
That should help 4064 and 2208 are comparable according to adi and in my experience.
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