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Started by ChrisH2020, January 09, 2022, 06:59:18 AM
Quote from: Denver Steve on January 09, 2022, 04:56:48 PMCan't find any load data for the 6.5 creedmoor with H335 powder. I did find some with Winchester 748 though. Which in most cartridges is very similar. But they only show that up to 130 grain bullets. H335 could be used with decent performance on very light bullets but won't get the best velocity with heavier bullets, will have very low case fill and spike in pressures very quickly.If you can't find any other powders and have to use it then you probably can use it if you work up a load very carefully and aren't looking for very high velocity.32.5 grains will give you roughly 70% case fill depending on which brass you are using. I would not go under that to start. And that is kind of where the problem lies. You will start to be getting up to max pressure shortly after that. Pressures will build quick and very suddenly with small charge increases when using that fast of powder with heavier rounds. Great care must be taken if you plan on trying to use the combo you are asking about.
Quote from: gman47564 on January 10, 2022, 09:16:45 AMChris h reloader 16 is a really good powder for the 6.5 creedmoor as well if you can find it.. same with imr 4451
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