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The Range
Ammo & Reloading
9mm Chronograph Data
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<blockquote data-quote="spence" data-source="post: 3322173" data-attributes="member: 45320"><p>The origin of this rabbit hole started when I observed via YouTube some of the differences in general chronograph data. Namely Buffman RANGE's data. He does a really nice job of putting info out, but the periodic changes in barrel lengths drove me bonkers, and it always seemed there was a big gap here or there in barrel lengths. Then, add on that the M9A3's 5.1" barrel always came in with lower velocities than the shorter barrels.</p><p></p><p>So I asked Santa for a chronograph for Christmas, and guess was showed up? I wanted to chronograph a wide variety of 9mm ammo that's typical to me and what I might shoot, plus a few others I could get my mitts on. I shot over two days, the first a month ago, and then today. Had to wait to try and get similar weather when I was home to do it. It was colder today than I planned, and fairly windy, but the results are similar enough, I believe. I did shoot a couple of loads from a month ago again just for the curious party to compare against each other. Ironically enough, even though it was a tad cooler out, the reshoots today clocked in a bit faster.</p><p></p><p>Test barrels included</p><p>3" - KelTec PF9</p><p>3.3" - PX4 Storm Compact</p><p>4" - XD9</p><p>4.3" - 92 Compact</p><p>4.9" - M9</p><p></p><p>I posted the first iteration of data elsewhere, and someone pointed out that Glock barrels tend to clock the fastest due to the polygonal rifling. I don't know how HS cuts the XD barrels, but I was a bit surprised that it typically clocked velocities the same as the M9's. I have a gen 3 G22 that I was ordering a 9mm barrel for around the same time, and I got a threaded Wolf barrel, totally spacing out that they're significantly longer. Had I gotten a non threaded, I might have used it in the mix, however I'm glad I didn't. At some point in the future I'll bust it out again to compare different barrels of similar length. I've got an XD40 with a Storm Lake 9mm barrel in that I'll stack against the factory 9mm barrel, maybe test the stainless LTT Centurion barrel against the standard compact barrel, and the standard M9 and/or threaded 92 barrel against the Wolf 5" Glock barrel.</p><p></p><p>It's all relatively useless information, but that's the kind of crap that I find interesting. I tend to get hung up on minutia sometimes.</p><p></p><p>[ATTACH=full]152756[/ATTACH] [ATTACH=full]152757[/ATTACH] [ATTACH=full]152758[/ATTACH] [ATTACH=full]152759[/ATTACH] [ATTACH=full]152760[/ATTACH] [ATTACH=full]152761[/ATTACH] [ATTACH=full]152762[/ATTACH] [ATTACH=full]152763[/ATTACH]</p></blockquote><p></p>
[QUOTE="spence, post: 3322173, member: 45320"] The origin of this rabbit hole started when I observed via YouTube some of the differences in general chronograph data. Namely Buffman RANGE's data. He does a really nice job of putting info out, but the periodic changes in barrel lengths drove me bonkers, and it always seemed there was a big gap here or there in barrel lengths. Then, add on that the M9A3's 5.1" barrel always came in with lower velocities than the shorter barrels. So I asked Santa for a chronograph for Christmas, and guess was showed up? I wanted to chronograph a wide variety of 9mm ammo that's typical to me and what I might shoot, plus a few others I could get my mitts on. I shot over two days, the first a month ago, and then today. Had to wait to try and get similar weather when I was home to do it. It was colder today than I planned, and fairly windy, but the results are similar enough, I believe. I did shoot a couple of loads from a month ago again just for the curious party to compare against each other. Ironically enough, even though it was a tad cooler out, the reshoots today clocked in a bit faster. Test barrels included 3" - KelTec PF9 3.3" - PX4 Storm Compact 4" - XD9 4.3" - 92 Compact 4.9" - M9 I posted the first iteration of data elsewhere, and someone pointed out that Glock barrels tend to clock the fastest due to the polygonal rifling. I don't know how HS cuts the XD barrels, but I was a bit surprised that it typically clocked velocities the same as the M9's. I have a gen 3 G22 that I was ordering a 9mm barrel for around the same time, and I got a threaded Wolf barrel, totally spacing out that they're significantly longer. Had I gotten a non threaded, I might have used it in the mix, however I'm glad I didn't. At some point in the future I'll bust it out again to compare different barrels of similar length. I've got an XD40 with a Storm Lake 9mm barrel in that I'll stack against the factory 9mm barrel, maybe test the stainless LTT Centurion barrel against the standard compact barrel, and the standard M9 and/or threaded 92 barrel against the Wolf 5" Glock barrel. It's all relatively useless information, but that's the kind of crap that I find interesting. I tend to get hung up on minutia sometimes. [ATTACH=full]152756[/ATTACH] [ATTACH=full]152757[/ATTACH] [ATTACH=full]152758[/ATTACH] [ATTACH=full]152759[/ATTACH] [ATTACH=full]152760[/ATTACH] [ATTACH=full]152761[/ATTACH] [ATTACH=full]152762[/ATTACH] [ATTACH=full]152763[/ATTACH] [/QUOTE]
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