I saw that too. Just assumed it was a typo or miss measurement.
Longshot seems to be linear in it's pressure curve. It's a safe powder.
At least in my loads for the 10mm and .460 Rowland .
A slight hijack.
Your experience with 460 Rowland loads and Longshot vs AA#7.
I just got a Rowland up and running and will be shooting some Super-ish loads this weekend to get a baseline. I'll be shooting Montana Bullet Works 250 LFN GC and Missouri Bullet Company 250 grain Pinbusters with AA#7.
This is in a 1911 platform.
Never used AA#7 for the Rowland. For Super-ish loads (~28K) it would probably be very good. It works very good for mid range loads in the .357 mag.
I load my .460 loads to, guessing 34k, not the max. Longshot would be my choice if loading close to max also.
Let us know how the AA#7 does with those bullets.