While I lean Libertarian in many areas, I disagree with their platform when it comes to foreign & defense policy. What's more, they don't have the slightest chance of actually winning at the national level. That being the case, I normally vote for the more Libertarian-leaning candidate in the primary and then vote a straight Republican ticket in the actual election.
I too am a libertarian - with a small “l” not the large “L” of the party. The Libertarian Party has too many pacifist, naive, stupid, ignorant, utopian ideas about government and human behavior.
For instance, extremely unlibertarian positions of mine include:
1) four years of mandatory military training in high school plus one year of active duty — for everybody: male, female, gay, lesbian, transwhatever, handicapped, retarded, whatever, conscientious objector or unconscious.
2) a deadly wall on the Mexican border. And admission to citizenship only those really qualified, i.e., who know American language, history, geography, civics, math and science.