I've fired the Legend FMJ in 9mm (50rds) in my Taurus 709 the same day I got the gun new. It performed well without malfunctions of any kind and cleanup was a breeze.

This is jacketed ammo and will not give the big cloud of smoke that lubricated lead does. As you develop some familiarity with your weapon of choice "hours" of cleaning should be reduced to "minutes" of cleaning. A CLP like FP-10 and a bore snake should take care of most of it. Field stripping and a wipe down with FP-10 should do the rest. Put a film of lube on the internal parts before shooting and it should wipe clean easily.