Ackleyfan
Between those two - I would go with the Omega - it is really pretty straight and easy to use.. not as easy to clean as everybody would have you believe - but not difficult... The Knight, and I am assuming you are talking about a bolt action not the Revolution is a
littlemore difficult to shoot in that you have little placstic gadgets that you have to insert 209 caps into then into the rifle... I think the Omega would still be a little easier to clean.
It is my personal belief the 50 cal is the better choice....
You can not beat Thompson Center - lifetime warranty....