For what it's worth, I know I am not in Montana. Here inWashington where there a lot more tree hugging hippie types than in Montana, I haven't had any problems at all. A couple of friendly questions. One CC'er who looked down his nose at my gun and told me I should conceal it, and one Wal Mart manager who asked me to cover it up for the remaining 30 seconds I was in the store.
I would think Montana would be even more friendly than Washington.