I have a barrel and a breach plug for a Howdah pistol that I hope to make some day.

It's 4 bore.

It will be muzzleloading and have a backaction lock. Stocked in very hard walnut.
It's just a "fun project" and not an order. So I have not gone ahead with it yet, but it would be truly impressive when it's done.
Need someone with a very small brain to test fire a full charge in it for me.
No experience necessary.