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Long Range Hunting & Shooting
Which primer for new StaBall HD
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<blockquote data-quote="RogerPA" data-source="post: 2736334" data-attributes="member: 70741"><p>For what it's worth, just this week I've been trying to develop a load for a new 25 Sherman Short Tactical (25 SST), and did experiment with Win. StaBALL HD powder and using both Fed. GM210M (match) & Fed. GM215M (match) primers. (The bullet was a 121 gr. Hammer Hunter. ). There is of course no published data using this combination, or at least that I could find. Anyway, the variants between these two primers at every load density I tried was remarkably similar! In fact, the average difference between the two primers for each load level was only 7.5 fps.! So in my opinion, and based only on this very limited test, there really was no noticeable difference between the two. POI's were about the same, and I reached pressure with both primers at the exact same load density. (57.5 grains). I might add, for my the 25 SST at least, this powder/primer and bullet combination doesn't get me the velocity I'm looking for. Good Luck with your 6.5 PRC. I hope this info helps in your development.</p></blockquote><p></p>
[QUOTE="RogerPA, post: 2736334, member: 70741"] For what it’s worth, just this week I’ve been trying to develop a load for a new 25 Sherman Short Tactical (25 SST), and did experiment with Win. StaBALL HD powder and using both Fed. GM210M (match) & Fed. GM215M (match) primers. (The bullet was a 121 gr. Hammer Hunter. ). There is of course no published data using this combination, or at least that I could find. Anyway, the variants between these two primers at every load density I tried was remarkably similar! In fact, the average difference between the two primers for each load level was only 7.5 fps.! So in my opinion, and based only on this very limited test, there really was no noticeable difference between the two. POI’s were about the same, and I reached pressure with both primers at the exact same load density. (57.5 grains). I might add, for my the 25 SST at least, this powder/primer and bullet combination doesn’t get me the velocity I’m looking for. Good Luck with your 6.5 PRC. I hope this info helps in your development. [/QUOTE]
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Which primer for new StaBall HD
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