You mentioned ‘one’ handgun to take. If the bias is more toward defense your Glock sounds like the perfect choice, but for all around use with a smaller chance of social encounters I would tend toward a 3” model 60-10 in .357, adjustable sight. Not too big or small, plenty of power but not 15 rounds available. Be safe out there!

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Alan
SWCA LM 2023, SWHF 220