Whether the rifle will do as they claim, I suspect it will. The use of smokeless powder is needed to produce these results. These rifles do claim some impressive numbers. States who object to such a muzzleloader being able to create these kind of loads need to implement a smokeless powder restriction. I have personally never seen one, shot one, or handled one, and have no intention of doing so.
With the kind of price tag these rifles carry, I do not think they will be too common on the hunting market right away. $3200.00 to custom rifle, this rifle is a little steep for my blood.
These vary rifles are the kind that Traditional rifle hunters quote statistics of, to governmental agencies when they try to influence their agenda. They just fail to mention that the majority of the inline market does not even come close to these specifications.
http://www.badbullmuzzleloaders.com/