THX i try this and reply if all ok.I've been trying to find it. Not really sure, but here is a custom file. It's the original ammo press sfx from the press in FA3 the Pitt. I figure if you're going to have to add your own sounds they might as well be authentic. It's 48kb. I tried to compress it as much as I could.
http://www.mediafire.com/?laanni90aoaqz40