"Much the same as yourself," Holmes replies, setting the bag gently on the ground. "Though I must say, your method of transportation is far superior to mine." He nods, with a touch of envy on his face, at the now normal-sized guns.
He kneels and removes two long bundles and a very small one from the bag. The two long ones he unwraps, revealing two guns, similar to one of those that Severus has displayed.
The smaller bundle he leaves wrapped up. Holmes also removes a box of pellets, which he sets to the side.
"Now," he says, getting to his feet, "I am given to understand that you have never used a gun before. Is that correct?" His expression is very serious.