Quote:
Originally Posted by Cal Lego
Hi J.B. I want to say thanks for posting the spread sheet. i did notice what appears to be an error in the amount of Herco used. I think the numbers must have about 10 grains added to the correct amount. I was using Sherman Bell's loads of 30 grains Herco and 1-1/4 oz. I might see going to 33 or maybe even 35 grains but 45 grains-29 grains Unique sounds right and Unique in a 10 gauge is right around the Herco range.
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You are welcome, I just double checked the spreadsheet against my cited sources of that loading data, the 1968 and 1970 Hercules Reloading guides. The amount of Herco stated is correct as published in those guides. I believe those powders have changed since that was published and I put a note in the sidebar in red advising that I would reduce these charges by 15 to 20%. Perhaps advising a reduction by 25% would be more prudent.
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