I think it said any straight sided above 30 caliber.
Heavy 45 colt loads, how could I forget. They can easily top 44 mag ballistics. Just make sure you dont load em in a Colt style six shooter.
Since you need factory charts to show 500 ft lbs or more, you would have that with the +P 45 colt loads.
Too bad the actual 45 colt barrel for the T/C also chambers .410. That's a enormous gap for the bullet to jump, I hear accuracy suffers. But you could use a Ruger Blackhawk
