I have been shooting BH209 now for over 2 years.
Some obvious advantages are:
Being able to shoot 20 or more consecutive shots without having to clean the barrel.
No crud ring that occurs with other powders.
Easy loading of projectiles because of minimum powder residue build-up
Clean up using standard gun cleaning solvents = no more water.
Some of the disadvantages:
Harder to ignite, so some in-lines can not use BH209.
Carbon build-up in the nipple/flash channel causing hang fires after multiple shootings.
BH209 is expensive compared to other black powders.
BH209 is not as readily available as other powders.
Last edited by BigV; October 1, 2011 at 12:12 PM.