Now buy yourself some masking tape and lay a strip down sticky side up. Use smokeless powder from any cartridges handy to make a somewhat consistent powder train. Fold the sides of the tape over and viola' instant fuze.
Hope you plan on doing alot of stumping, ditching, or quarrying. You'd be better off using an AMFO slurry. 18,000 fps is going to give you crap for brisance. Let us compare this to TNT....22,600, or C4 at 26,400. Don't worry about heating the AN, you'll get a really nice buzz from the nitrous oxide released....now I don't recall right offhand, but 640 F is the temp where you start having bad things happen.