fecmech
Appreciate the info as I was also working off that also but wanted to see if the old data was accurate also......obviously it's not.
The use of "OAL", I'm learning more and more is a useless term unless you are using the exact same bullet. The psi is more a result of seating depth of the bullet into the case than by OAL or even weight of the bullet. Picture below is a visual demonstrating the variation in seating depth of four 240 - 260 gr cast bullets I am working with. Note in the above test the Lee 240 gr bullet gave the highest psi, higher than the 253 and 260 gr bullets because it was seated deeper. I have 3 of those bullets (out of the commercial cast GC bullet) now loaded over 8 gr (thrown) Green Dot for a side by side comparison.
Attachment 238356
As to 9.5 gr being a max load, not knowing the seating depth of whatever 240 gr bullet they used, it could very well be. I hit a max load at 9 gr running 35,100 psi with the deep seated Lee TL SWC. With that 240 gr TL bullet seated out to the 2nd lube groove or with the 240 gr 429360 with it's less seating depth 9.5 gr Green Dot may indeed be a max load. Don't know yet. I do know that the max load is 9gr with the 240 Lee TL bullet seated that deep. So much to test, so much to learn......