The firm of Francois Dumoulin & Sons has been a maker of firearms in Leige, and now Herstal Belgium since the late 1800s. Below is a link to their company website. They may be able to provide you with additional information on your shotgun.
Would need to know the other markings as well.
ELG inside an oval is a Belgian proofmark.
inside reciever stamped: 4256 D C
hash marks or lines running parallel with the casing, caused by the inside of the barrel of the gun as the bullet travels out when fired
A double barreled bat is the same as a double walled bat. The barrel (the part where the ball hits the bat) contains a smaller barrel inside it's hollow compartment. This gives it more umph when the ball hits the bat because of the 'trampoline effect'.
The bore of a barrel is the inside of it.
One difference is that the inside of a shotgun barrel is smooth and the inside of a rifle barrel is what they call "fluted" which puts rotation on the bullet as it moves though the barrel.
No, there is no difference between an inside and outside barrel. Doran is an idiot
Depends on what's inside the barrel
Simple, it it is a true barrel simple find the measurement from inside to inside of your barrel and divide by 2. IF it is not a perfect half circl barrel or true barrel, simple find your chord (measurement inside to inside) and find your rise. Once you have these measurements you can use your diameter formula to figure the radius
Remove the front barrel handguard. The battery pack is inside. It has a pigtail that plugs into a charger.
somewhat dark and dirty. just think what the inside of a barrel would look like if you built a fire in the barrel......................