Re: H380 powder for 22-250 and 7mm08
I can't comment on the 7mm08 but can tell you this. Try from 39-42 grains of H380 in your 22.250 with a 52 grain sierra match king 10 thou off the lands and you should be under .4 inch easily with them. I just shot some yesterday and 41.5 was the best in my gun at .356 and an average velocity of 3850fps. Another great powder for the 22.250 is vihta Vouri N130 which will be alot faster depending on the charge. I went from 30 grains up to 33 and velocities were going around 3500 on 30 grains to 3960 on 33 grains. accuracy was under 1/2 inch almost every load. One thing I will add the N130 does not like rem 91/2 primers the extreme spread was just that. Extreme! Tried magnum 91/2 primers and the spread shrank to acceptable levels and was very good with cci br2 primers. If you want a complete rundown and a few more loads drop me an email.
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