I say June took alot of shots? her pillow,bedding ect has some blood on it! Ralph bedside nothing!! yet he may not even been shot at this stage?
I do believe he could of been shot in the lower arm on the landing. but that is unlikey put blood on the phone if you use your good arm to pick up the phone and hold against your shoulder with your head. & dail with the good hand.
Mind you if Ralph died in the kitchen doen't mean he made the call there, the office was a another place and escape by the backdoor!

to say yes theres another Photo of a bolt-action .22lr rifle been taken on the office table...