This is currently manufactured obsolete caliber SMOKELESS ammunition for reproduction firearms chambered in 50-110 caliber. Loaded with a .510" 350 grain flat nose. This is not for original firearms but only for current reproduction rifles that the manufacturer says is rated to use smokeless ammunition.
NOTE: All ammunition is shipped via UPS Ground "Adult Signature Required" ONLY. So be sure you have a physical shipping address on your order as UPS will not deliver to a P.O. Box.