Blackpowder Cannons and shooting supplies link list
The following links are not sponsors
A link list of suppliers of Cannons, cannon shooting supplies and materials for building your own gun, big and small taken from postings here on this board and found on the internet. 
These are not sponsors.Links are active.  Just click on any name and you will be taken to their website.  Click on email address to send an email. This is not an endorsement just a list of resources.
If you find one of these links dead, please drop me a PM.
If you contact one of these companies, be sure and tell them you found them on GrayBeard 's Blackpowder Mortar and Cannon Board.
WarningShooting cannons is not like shooting a big over sized muzzleloader.  There  is a completely different set of internal ballistics  involved.   Read up on cannon shooting before you acquire a cannon. Suggested reading is 
 THE MORE COMPLETE CANNONEER  By M.C. Switlik with selected excerpts from other artillery manuals The book can be ordered from these two suppliers by clicking on these hotlinks:
 MagazineThe Artilleryman
Historical Publications, Inc.
234 Monarch Hill Rd.
Tunbridge VT 05077
Phone: 802-889-3500
Fax: 802-889-5627
E-Mail: 
mail@civilwarnews.comPublished quarterly  $18 per year
CAVEAT EMPTORContact these sites for information about their products 
before ordering. Dealers may not update their sites frequently. Dealers may list products that they no longer have and may have products not listed. It’s best to send them an email or make a phone call to inquire about what they have 
before ordering. On large websites use the website’s search function to find what you are looking for or use your browser find function to search.
Do your research, 
before  you order.  Query the Companies on 
http://www.google.com .  Use the Search function on GBO. Find out what is being said about the companies 
before ordering..  Make sure you know who you are dealing with and where they are 
before ordering..  Get contact information, including email address, business addresses, and telephone numbers, 
before ordering. 
Before  you send money, communicate with the company.  Ask about delivery dates, back order and stock availability.  Lock down delivery dates.  If possible, pay with a credit card or postal money order.  Don’t send cash, grocery store money orders or cashiers checks.  Keep records of every contact and transaction.
Keep in mind that a lot of these products are unique items.  You won't find them at Wal-Mart.  The items are often hand made by craftsmen who work out of their garage.  These people often have a real job and work on these products in their spare time. It is time consuming and costly to set up and make these articles.   Be patient.
I can not vouch for the reliability of any of these sites.  You must deal with them with caution.  I am only providing this list a resource. 
All links in blue are hot, click on them. 
Cannons and carriagesSurplus Rifled Cannon BarrelsWheelsCannon plansCannon SightsLocks  FuseFriction fuses - Yankem & Hyde Friction Primers
 Jason Clagg, Owner
 Rt. 2 Box 322
 Ona, WV 25545
 Phone: Cell; (304) 208-5508 Hm.; (304) – 762-2569
Slowmatch and chemicalsQuills (paper straws)PowderPowder vials and ContainerBall moulds- Smoothbore Machine, G.E. Everitt
 3900 Greentree Road
 Stow, Ohio 44224
 Ph. (330) 688-1556
- Jim Mathisrud 
 3035 Salem Av SO
 Minneapolis, MN 55416
Cannon balls for shootingImplementsLarge Casting LadleZinc suppliers (ZAMAK) Metal for building Hardware-Carriage Hardware, Bolts, Square nuts, EyeboltsSpringsLumber Marine Hemp RopeBrass-Bronze Blackening ChemicalsToolingVideosBooks Clubs, Organizations and AssociationsMISC. links