Suitable alternative to black horn 209?

That powder can only be used in certain inline BP rifles. It can not be used with any percussion caps and as for inlines can only be used in rifles with a locking bolt. Here is a link with very good information on it and other BP substitutes, but there is a annoying popup to buy the guys book;

https://thebiggamehuntingblog.com/blackhorn-209-vs...

Read that and then decide for yourself what else can come close. Its a newer powder that people like so there is one reason its hard to get. Also It can only be shipped ground.

So yes there is some close but none are the same or have the same burn rate.

Hmm. The whole point is to look for something much better than dirty fouling black powder. Black Horn 209 is supposed to be as clean shooting a powder as you can get without going to smokeless powders (which you can’t use in muzzleloaders). Also produces higher pressures sending a round faster down range. I was just hoping there was something similar to it’s performance that might still be available. Probably not. I’ll just have to wait until it becomes available again...probably in the year 2024 at the rate we’re going. . 

As said, there are several alternatives to Black Horn including real black powder.

That is probably marketing hype.  There are many black powder products that will provide satisfactory performance.