I almost always go with jacketed data. You likely will be ok with cast data but different companies have different thickness of plating, but few will ever approach the thickness of a jacketed bullet.
Thus you will always be loading on the safe side when it comes to pressure if you stick with the Jacketed Data.
This is due to the engraving force being lower for a cast bullet then a jacketed bullet. Higher engraving force will typically raise pressures.
Thus being said a really hard cast bullet may have a higher engraving force then a plated bullet, which typically uses a soft led core.
Substituting cast data for a jacket bullet will nearly always lead to higher pressures.
Reloading...it’s like knitting for men.
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