I have a Model 27 with the 8.375" barrel that I had used for IHMSA matches, and it reached out well to 200m, with the understanding that it was a 357 Magnum. When I got my 6" Model 57, it seemed to balance better, it wasn't muzzle heavy. Once I got the 57, I never really had the chance to shoot it beyond 50 yards before I became disabled.

I had bought my 57 for handgun deer hunting, with the prospect of going on a guided black bear hunt, so I opted for the 6" barrel over the 4", because I wanted to optimize velocity and have a longer sight radius.

Personally, I would go with a 6" barrel and limit my shots to the distance where I could keep 6 shots single action on a 12" paper plate.

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Judge control not gun control!