http://www.hsconline.co.uk/plastic-box-with-50xs1sc for the glass vials with box, they hold about 35 grains (the plastic vials discolour very quickly and it becomes difficult to see if there full or not)
Don't forget baby wipes, there a god send for bp shooters.
If you go to a gun shop they will probably try to sell you wads and a capper, don't bother I use porridge oats as a filler/wad this also prevents flash over without the use of grease/swarfega/hand cream, as for the capper the bought ones are rubbish, I use bits of fish tank air tubing
http://www.youtube.com/watch?v=pC5mwOJ2Khg
When it's windy I now use the paper cases but without the ball glued to the end, fag paper rolled to about 1-2mm smaller than the diamiter of the cylinder twist one end closed then cut the tube in half, twist the other tube closed then fill with the amount of bp you use then a filler (fine grain semolina) then twist closed.
http://www.airgunbbs.com/showthread....t=Black+powder