Trail boss- good for lighter grain subs, can work for heavy subs but requires almost a full case and a very compressed load.Īlliant Red Dot - Works well for heavy subs, but very extreme spread for lighter grain subs. Powders for subsonic single shot, bolt action Vihtavuori N120 Sierra lists it for super thru sub sonic loadings for 300 whisper.ĪA#9 Sierra lists it for super thru sub sonic loadings for 300 whisperĪA#5 Sierra lists it for light weight supersonic loadings (135gr and lighter) for 300 whisper, However other powders give much higher velocity.ĪA#7 Sierra lists it for light weight supersonic loadings (135gr and lighter) for 300 whisper, However other powders give much higher velocity.ĪA2015 is listed in some super sonic loadings for 150gr and above. Winchester 296 - this is the same powder as H110Īlliant 2400 can work for both subs and supersĪlliant 300mp seems to show promise for super sonic loadings May not function some 16 inch carbines gas systems. Hodgdon LIL'GUN Seems to work good for subs and supers. VihtaVuori N110 Sierra Lists for subs and super sonic loadings for 300 whisper. Powders that have been tested and tried by others. Powders that clearly work and have been tested thoroughly be AAC. This may be ongoing and won't necessarily be complete for a while. If you see something not right let me know, by also giving supporting reasoning. I may add notes to the original Post to each powder, with the understanding that sometimes what works for one gun combo may not work for another gun combo. This will not be for specific loads, although some may be listed, but will be broken down for supersonic powders, subsonic powders, powders that work for both, as well subsonic powders for bolt action and single shot, and may be broken down more as things progress. It is a beginning and the list will be adjusted and or modified as things progress. So this is going to be a List of powders that can be used in the 300 blk. Often powders that are way to slow to be used effectively in the 300 blk. They are constantly asking about powders. There tends to be a lot of newer 300 blk owners, and re-loaders joining lately, and I believe that will continue to grow.
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