I'm not so much concerned as to
how the weapon is being carried - I want to know
what is being carried! Look at the size of those Victrix muskets!

Looks like a long-barreled Blunderbuss or swivel gun! He can barely get his hand around the stock behind the lock and trigger guard. 'Brown Bess' certainly wasn't that bulky. Here's some pics showing how slim she was.
Don't like the fellow's mug, either!