I reload all of my film except when I shoot Iliford 3200. I have found several locations to get canisters. If you email me I will let you know those locations.(posted 8718 days ago)I agree with the above post reguarding the plastic canisters. I have a few and they always seem to cause some kind of problem. Word of warning though, even though you are careful, be aware that when you reload you stand a greater risk of scratching your film, I have made it a rule of thumb to use the reloads as learning tools or sport shots where a scratch will not cause me any great concern and when I need to shoot something really important, I use factory loaded that I keep on hand.(does not guarentee no scratches but odds are way better that you won't get them on factory loads)
As to the number of times you can use them, some that I have bought lasted for a couple of reloads before I had problems, others are still in use after 15 -20 reloads.
Also note, I work for a newspaper, when the photographers announced they were going digital full 100%, I found myself in a great position as they were getting rid of everything. The head photographer knew that I was reloading, so he gave me all of the cartridges they had, haveing sorted through them and throwing out any obviously damaged cartridges, I have not had any problems with those I have used so far, and I am sure that they reloaded these plenty of times prior to my recieving them. A lot depends on how you care for them.
Good luck!