I had my dad out to my place yesterday to sight in his Ruger American Predator in 243. I spun up the Harvester can to see how it performed. It sounds good and recoil is super low with this setup. It isnt as quiet as my Templar can but I would not expect it to be as it is smaller and much cheaper.
Here is a pic of dad shooting to 425 and getting solid hits on the coyote target.
Here is a video clip of him shooting to 300 at the 4" round plate and he went 5 for 5. Very proud as he is new to rifles and this was his first time shooting past 200 yds.
Ruger American Predator 243 with Harvester: http://youtu.be/xApilt97uoM