Thread: 450 bm

Hi Moa Hunter; I couldn’t identify the powder that were in the factory rounds. One of the Hornady podcasts ( listened on Spotify) ; the hornady guy said the powder they use for the subsonics wasnt a available for general public purchase. Alliant Red dot seemed to have reasonably close to the same bulk in the case where as Hodgdon titegroup seemed to take up very little case for the same weight ( around 11 grains) Of course there is a abit of variation in powder weight to get around 1,030 fps between jacketed bullets & hard cast … & Regular Large rifle primers & Magnum rifle primers ( run out of regular primers) Magnum primers gave an extra 30 fps for same powder load which equated to .5 gr less powder to get back to 1,030 fps
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