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The Range
Ammo & Reloading
SPP versus SRP versus SPM Testing Results
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<blockquote data-quote="Rez Exelon" data-source="post: 3501392" data-attributes="member: 5800"><p>[USER=1685]@mouthpiece[/USER] linked me to a great video on the subject the other day when we were talking about this: [MEDIA=youtube]NGVRGsoOr6k[/MEDIA]</p><p></p><p>In the video a commercial reloader is doing some extended tests regarding pressure and doing some chrono stuff. The pressure stuff was really interesting as I have no way to measure that, and I think it'd be pretty cool to know more on that side. The video is definitely worth watching and came with results that back up what I saw --- not any real difference in pressure or velocity. I'd expect POI shift in the case of velocity, and more kick in the case of pressure. I didn't mention it above, since recoil is such a subjective measurement, but I couldn't tell the difference between any of the loading on that front. If anything it seemed oddly like the higher 4.7 grain load felt <em>softer</em> than the 4.5 which I thought was weird. </p><p></p><p>Definitely some good resources out there on the subject, but I'm of the type that I really like to trust but verify. It makes me more knowledgeable doing some homework on it, and makes sure that it is true for <strong>my </strong>loads and guns.</p></blockquote><p></p>
[QUOTE="Rez Exelon, post: 3501392, member: 5800"] [USER=1685]@mouthpiece[/USER] linked me to a great video on the subject the other day when we were talking about this: [MEDIA=youtube]NGVRGsoOr6k[/MEDIA] In the video a commercial reloader is doing some extended tests regarding pressure and doing some chrono stuff. The pressure stuff was really interesting as I have no way to measure that, and I think it'd be pretty cool to know more on that side. The video is definitely worth watching and came with results that back up what I saw --- not any real difference in pressure or velocity. I'd expect POI shift in the case of velocity, and more kick in the case of pressure. I didn't mention it above, since recoil is such a subjective measurement, but I couldn't tell the difference between any of the loading on that front. If anything it seemed oddly like the higher 4.7 grain load felt [I]softer[/I] than the 4.5 which I thought was weird. Definitely some good resources out there on the subject, but I'm of the type that I really like to trust but verify. It makes me more knowledgeable doing some homework on it, and makes sure that it is true for [B]my [/B]loads and guns. [/QUOTE]
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