What an adolescent reply! I'm not holding back anything... slyly or otherwise.
I cannot positively discern the Type and Brand of rifle. The film sequence is short and the rifle is partly obscured for some of the time. I don't see a telescopic sight or a bolt-action. That's why I guessed the rifle could be an M1 Garand.
The difference between performing a physical task and writing a reply is obvious except to the mentally challenged. With physical tasks (firearms/arrows)... accuracy and/or speed is paramount. To under-perform: Aiming off-target or going slow is easy to accomplish. Written tasks aren't equivalent. Formulating a reply can be done slowly and still be coherent. Dexterity is not required.
Your posts are silly "game-playing"... the hallmark of an anemic intellect. Just tell me what the rifle is and be done with it. You're not impressing anyone with your drawn-out deception. 
Not meaning to be rude: What level of education have you achieved? College, High school, Playschool?
Prof. Ross, you don't need to yell, who do you think I am, your x-wife? You could easily tell me the type and brand of rifle but instead, you feel the need to attack when you get a taste of your own medicine. I've noticed you follow the same lazy script, act smart play dumb. It should be noted your response was absent of your favorite word, Mauser. Why is that?
All I've asked is for you to provide the evidence showing LHO committed this crime, but unfortunately, you can not. When you are asked anything related to the crime, you give the same response "it's common sense" which is funny, because if it is so common then why are you here? Just answer the questions, what is the name of the agent and what is he carrying in his left hand? These are not trick questions but it should not matter if you answer them honestly. Quit trying to be difficult and lighten up.