I'm really debating between a 4 or 3 inch barrel on a .357. The 4" feels like a nice mix of portability and ballistic effectiveness, but the 3" might have a carry advantage. I think the 3" might be on a smaller frame? That might be easier for carry. But then there's the issue of capacity, because the smallest frames seem like they only have a 5 cap, where the mid frames have 6. What should I go for? Bigger package with 1 more on the cylinder, but it's harder to carry, or a smaller package that sacrifices a shot? Side note: I'd prefer not to spend more than $800.