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Requesting Misdreavus and Pikachu (both girls) loading an old percussion cap rifled musket, Pikachu holding the gun up around the bottom, with the stock resting against the ground and putting a percussion cap on the "nipple" of the gun's lock, and Misdreavus hovering up by the muzzle, holding the ram rod, shoving it down the barrel, with a powder-flask, tin of percussion caps and a box of minie balls on a cloth in the grass next to them.
Not too long of a gun, carbine length, maybe .58 caliber (almost 15mm bore size), if one looks down the sights, and another cocks the hammer and is ready with the trigger, they could hypothetically use it adequately by resting it over a sandbag or something.
