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Newtire
11-30-2008, 01:07 AM
Just got started loading for a .257 AI. Not much done yet but since Beagle had already done alot of work with the standard Roberts and gave me some data, I did a little extrapolating & came up with a real accurate load with the 120 gr. RCBS. It was 18 gr. SR 4759. Also loaded up some with 19 gr. H-4198 and had the promise of a good group started so think I need to go up on that one a grain or 2. We will see.

I don't hear alot about anyone loading cast for this caliber but it is showing some real accuracy.