No, it shouldn't be a problem provided the headspace-head clearance is the same. Keep in mind, wildcats and Improved cartridges do not have an "official" specification, so depending who made what there many be differences in both the chambers and brass. Some have discovered this using Nosler 280 Imp brass in their existing chambers. After forming, Improved cartridges headspace the same as any other cartridge, in this instance from the breach face to shoulder. A few simple measurements would tell the tale.Originally Posted by nuclabuyer
Bill
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