-After some discussion, blowpipes have been improved - it now takes 1.5AP to attack with a blowpipe, but you don't have to pre-load it. Just ensure you have a poison dart in your inventory. Once you've learned the basic blowpipe use skill, you can then attack for just 1AP.
-So you don't lose your poison darts, all blowpipes have been unloaded and the darts placed directly in your inventory. As a result, you may encounter inventory usage much higher than normal. As you use darts, this will return to normal but if it bothers you a lot, you can just drop most of your (now empty) blowpipes.
just give me a ten round magazine for my rifle and i'll be happy. I can pretend its an enfield then, and run round killing nazis like its Nineteen fourty four!