I doubt many shooters would use different load data from what is seen in a typical 23-24" barrel. Not enough difference to matter, regarding powder choice and such. With that round, I bet you will be down around 40fps per inch of barrel length below a 24", so probably not even worth sweating. It also wouldn't be uncommon to get back 10-30fps with the use of the can.
Kind of what I assumed. Asked the question to basically see what powders others were using at what velocity and what accuracy they were achieving.
