|
A 10ga can be built but not from a 20ga because there isn't enough barrel. 20ga ML bore is 0.615" to 0.620" and a 10ga is 0.775" to 0.780" thus the 10ga bore I.D. (Inside Diameter) would roughly equal the 20ga barrel O.D. (Outside Diameter).
Two other pertinent issues are the grip design and recoil. The maximum allowable powder charge for the Pedersoli Howdah is 35gr of black powder and when behind a 342gr 20ga round ball is going to be a handful to control with the long radius grip design. A 0.770" 10ga round ball shows 688gr on the balance or slightly more than double the mass of the 0.610" ball. Grip design is very important when it comes to controlling recoil but no matter the design, there comes a point when the recoil will become excessive and uncontrollable which is what you will find with an extremely large bore handgun.
When I build a gun, or even when replacing the grip panels on a C&B for someone, adjusting the grip style & size to the user makes a huge difference in how well the gun interfaces with the user.
__________________
"Carry the battle to them. Don't let them bring it to you. Put them on the defensive and don't ever apologize for anything."
Harry S. Truman
[email protected]
|