Fwiw!

"As you can see, there are two areas where the velocity curve levels out,
even though the powder charge continues to be increased. Shots 6 through 9
and 14 through 17 show a pronounced "flattening" of the curve. On the other
hand, the difference in velocity between shots 17 and 18 is 57 fps."

Well, I'll B!!

Maybe I'm learn'n something here. When I experience this leveling out phenom, I've been thinking that I've topped out velocity wise with that particular powder and move to a faster powder. (If my MV isn't what I anticipated)

When I get the desired velocity and accuracy I switch to the OCW method to ensure there is some velocity leeway and still maintain accuracy.

Ya know, I may be all wrong.....
 
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