Alliant Powder STEEL Shotshell Powder Steel Shotgun Multi-Gauge 1 lb
https://www.tandktactical.com/shop/008307500018-alliant-powder-steel-shotshell-powder-steel-shotgun-multi-gauge-1-lb-7799
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Alliant Steel special powder for waterfowl shotshell gives steel shot high velocity within safe pressure limits for 10 and 12 gauge loads.
