It would help us help you, if when you write these kinds of post you tell us where you live. We have members in almost all the states, and in some foreign countries. If there is a retail source for Black Powder near you, one of us will know.
Your second source of information will be going to the Goex Website( see the LINKs provision at the top of the Index page to this forum) and find the distributor for your state, or province. Most list both email addresses, and toll free phone numbers. They can tell you exactly who the nearest retail seller of BP is for your convenience.
Most of us now order BP by phone, or drive to a distributor to pick it up ourselves, to eliminate the HAZ MAT fee. We do a GROUP order- that is, we get together with other local BP shooters- usually a club--- take an order, collect money , and then order the powder shipped to our home. Once the case or two is delivered, we distribute the powder to all who ordered it. Everyone is happy. Its typical for most clubs to place an order that will provide everyone with enough powder for a year or so of shooting. That way, the club only has to do the powder order, and delivery once a year.
If you don't already belong, Join the NMLRA. It has both charter clubs, and state representatives in every state that can help you find other BP shooters, and a place to shoot. That information is also available on its website, I believe.
The distributors who sell a wide variety of powders include Graf& Sons, at Mexico, Missouri, And Powder, INC. in Arkansas, across the river from Memphis, Tenn. at Berryville. Jerry's Powder Keg, in Louisiana seems to be offering the best( lowest prices on powder, and the Maine Powder House is another good source for powder. If you go to the links section here, you will find a pretty good list. Coonies in New Mexico is another good source.
If you go back through the prior posts here under " Shooting accessories" and look for posts that begin with " Powder", you will find a couple from this Spring, and Summer where a member, McKeal, has taken the time to prepare a chart that shows the prices being charged by all the Powder distributors named here. Its very useful information when you are trying to save money.
Both Powder, INC. and Graf & sons, will sell as little as 4 or 5 lbs, at a discount, and are willing to mix granule size, and even brands in any order. Paying $13.00 per pound is a lot better than paying $20.00 per pound at retail, altho when you understand the costs associated with meeting both state and federal requirements to stock BP, you won't begrudge the retailer for charging that price. The Subs usually cost a lot more. And, some of these substitute powders are made on an Ascorbic acid base, that begins to oxidize and deteriorate as soon as the can is opened and air contacts the powder. You have to use the powder up fairly soon or it loses is power.
IMHO, its worth the extra effort to buy BLACK POWDER. its what the guns were designed to fire, and we have not really found a better propellant to shoot in the guns. :thumbsup: