Off the top of my head I can not think of another hammerless break open rifle. Be sure this is going to be legal to hunt with in your State. Some require an exposed ignition, others a hammer.

As for the Knight Vision, understand this is a new model just hitting the market. I wonder if Knight found or felt they could improve on some part of the rifle and for that reason delayed the introduction into the market. I usually do not endorse the purchase of any new model rifle hitting the market for the first time. I like to watch them for at least a year and see if there were any flaws in them. I'd rather let someone else put up with the new production headaches. Take the Tradition's Pursuit when it first hit the market. Great looking rifle with a reported terrible pull to the trigger. They fixed that and now have a good rifle on the market some claim.

The one advantage of buying a Knight rifle is, if there is something wrong, they are going to make it right. They have a great customer service in my experience with them, Other opinions may vary. So if you wait for the Vision it might be to your advantage to purchase from a company like Knight since you are so positive you want a hammerless rifle. Otherwise look at the Omega or the Revolution.