Blue Dot is superb in 357Sig at or near max loadings. Extremely accurate with excellent velocity. The flash/bang is also very impressive, especially if you are shooting at an indoor range with a short barreled handgun. I wear ear plugs and muffs for those occasions!!
Loading BD at mid range loads will usually always shoot dirty with a lot of unburned powder. Sort of like 2400 loaded light in 44 Mag. brass. They are both magnum powders like H110, but not as tricky.
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