http://www.guncustomizing.com/tech.htm#chokes There is no "conversion". The choke constriction is the choke constricition. What its called varies.
They can range between 200-500 depending on grade and condition.
Yes and no, they are known amongst the learned group of english shotgun enthusiasts No to probably anyone else.
If this is a American Arms recent import shotgun from Spain,then the value would be between 400-500 dollars for a shotgun which is in pristine condition.If this is a older made Spanish shotgun,then I would need the makers name,overall condition and barrel length,to have any hopes of helping you.
No, it is British.
Anywhere between 5-10 pounds. Depends on the shotgun
American Gypsies - 2012 Shotgun Wedding 1-8 was released on: USA: 4 September 2012
American Daredevils - 2013 Fear Rides Shotgun - 1.2 was released on: USA: 8 October 2013
a shotgun is pump action and a revolver "revovles" the ammo.
The answer that I will supply you with,will be based on your shotgun having between 60%-90% of its original finish remaining,and a good bore.If your shotgun has a standard barrel then it is valued at between 340-450 dollars.If your shotgun has a vent rib barrel,then the value will be between 415-630 dollars.
between the stock and the barrel
The 12 gage has a bigger barrel then a youth 20 gage shotgun.
Depending on the condition, a single shot would bring between $25 and $90 and a double barrel from $100 to $250.