Off target

Jeremy, who joined the army, was considered slow by all his army colleagues. When he was taken to the indoor firing range for training, his trainer gave him some instructions, handed him a rifle and some bullets.
Jeremy fired several shots at the target and when the report arrived, it revealed that he had missed the target completely in all the attempts.
Jeremy looked at his rifle and then at the target. He looked again at the rifle, and then at the target. He put his finger over the end of the gun barrel and pressed the trigger with his other hand. The end of his finger was blown off, and he shouted toward the target area: "It's starting from here just fine. The problem seems to be at your end!"