New Hampshire, Vermont, Utah, Maine, etc. All very progun, all very low homicide per capita. 

Or look at individual cities. San Diego is the only somewhat progun big city in California, and we have by far the lowest homicide rate compared to LA and SF, even though SF has no gun store in city limits. 

Or look at West Virginia. Absolutely dirt poor, with high gun ownership. Should be a recipe for disaster right? In fact, their homicide rate, while nothing to brag about at around 4 per 100k, is below the national average of 5.5 per 100k. 

The places driving our homicide rate are cities like Chicago, Baltimore, St. Louis, and so on. They have third world homicide rates ranging from 15 per 100k all the way to 60 per 100k. And most have plenty of gun laws.

It's hilarious you mention Texas, which has a homicide rate that is usually equal to California's most years, even though California has way more gun laws.