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The Range
Ammo & Reloading
9mm 147gr vs 147gr subsonic
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<blockquote data-quote="WhiteyMacD" data-source="post: 1437070" data-attributes="member: 7633"><p>OKC ~1200f above sea level. (All FPS I give,... multiply by .9873)</p><p>Humidity barely plays a role in the speed of sound, as humidity increases so should the speed of sound, but the increase is slight.</p><p></p><p>The only noteable change occurs with temp...</p><p>So lets say:</p><p></p><p>0*F = 1050fps</p><p>60*F = 1117fps (OKC annual average)</p><p>103*F = 1162fps</p><p></p><p>Most fiocchi data I see has it rated at 1000-1050. Unless it was some +P I have never heard of...</p><p></p><p><img src="/images/smilies/wink.png" class="smilie" loading="lazy" alt=";)" title="Wink ;)" data-shortname=";)" /></p><p></p><p>Now if you chrono'd it and it came out faster... then I guess I wont be buying fiocchi as they obviously load hotter than their listed data.</p></blockquote><p></p>
[QUOTE="WhiteyMacD, post: 1437070, member: 7633"] OKC ~1200f above sea level. (All FPS I give,... multiply by .9873) Humidity barely plays a role in the speed of sound, as humidity increases so should the speed of sound, but the increase is slight. The only noteable change occurs with temp... So lets say: 0*F = 1050fps 60*F = 1117fps (OKC annual average) 103*F = 1162fps Most fiocchi data I see has it rated at 1000-1050. Unless it was some +P I have never heard of... ;) Now if you chrono'd it and it came out faster... then I guess I wont be buying fiocchi as they obviously load hotter than their listed data. [/QUOTE]
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9mm 147gr vs 147gr subsonic
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