Well, I consider myself libertarian on most issues (with the biggest distinction from the Big L's of opposing open borders), and I like what I've seen so far just fine.
You're not alone. Many many people who consider themselves libertarians have been horrified by the antiwar postures of a lot of self-anointed libertarians. It may even be the majority but I don't know. I'd consider myself a fairly hawkish libertarian, much more so than Cato or Reason let's say. Unfortunately the peaceniks wing is very vocal because, well, so many of them have no life. Ahem.
Low blow!