I’m working on load for an oddball 9mm weight with extremely little available data. I’m looking at known data for a similar bullet design and extrapolating the math. I will be loading 150gr Brass Monkey flat nose bullets. They are a polymer coated lead, which is similar to Acme’s power coated lead. I’m looking at Hodgdon’s data for Acme 135gr and 145gr, seeing how much the charge drops for the 10gr heavier bullet, and taking half off again to go from a 145gr to 150gr bullet.
Looking at powders that I have, they show the following Acme 135 gr loads for CFE-P, Titegroup, and W244:
CFE-P starting charge of 4.2gr and a max of 4.8gr
Titegroup staring charge of 3.3gr and a max of 3.8gr
W244 starting charge of 3.6 and a max of 4.1gr
They show the following Acme 145gr loads:
CFE-P starting charge of 3.6gr and a max of 4.3gr
Titegroup staring charge of 2.9gr and a max of 3.4gr
W244 starting charge of 3.0gr and a max of 3.6gr
If I extrapolate the math to 150gr bullet, I get the following:
CFE-P starting charge of 3.3gr and a max of 4.0gr
Titegroup staring charge of 2.7gr and a max of 3.2gr
W244 starting charge of 2.7gr and a max of 3.3
Does my math appear to correct?
I’m leaning towards W244 at around 3.1gr as I prefer loads that are on the higher side of midrange.
Looking at powders that I have, they show the following Acme 135 gr loads for CFE-P, Titegroup, and W244:
CFE-P starting charge of 4.2gr and a max of 4.8gr
Titegroup staring charge of 3.3gr and a max of 3.8gr
W244 starting charge of 3.6 and a max of 4.1gr
They show the following Acme 145gr loads:
CFE-P starting charge of 3.6gr and a max of 4.3gr
Titegroup staring charge of 2.9gr and a max of 3.4gr
W244 starting charge of 3.0gr and a max of 3.6gr
If I extrapolate the math to 150gr bullet, I get the following:
CFE-P starting charge of 3.3gr and a max of 4.0gr
Titegroup staring charge of 2.7gr and a max of 3.2gr
W244 starting charge of 2.7gr and a max of 3.3
Does my math appear to correct?
I’m leaning towards W244 at around 3.1gr as I prefer loads that are on the higher side of midrange.