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Long Range Hunting & Shooting
6.5 Creedmor- the Holy Grail?
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<blockquote data-quote="MudRunner2005" data-source="post: 1530203" data-attributes="member: 12995"><p>Waste of taxpayer money... We already have those 3 I mentioned, so why the hell would we need a .300NM, or a .300 PRC for +2K engagements. That's just idiotic.</p><p></p><p>Yes, I've been around a long time, and am quite aware of how twist rates, bullet weights, and seating depths work... I'm also quite aware of cartridge dynamics, as I design lots of wildcats.</p><p></p><p>Twist rates only VERY slightly affect pressures...Sometimes not at all. So, how would modern twist rates affect reloading manuals for 1:9 twist barrels, other than not having load data for 1:7 or 1:8 twist barrels? The only trouble they would have, is getting it to stabilize or group with the heavy bullets.</p><p></p><p>Now, if you're talking about seating depth causing pressures issues, yes, that does. But twist rates won't affect anything enough to even quantify.</p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1530203, member: 12995"] Waste of taxpayer money... We already have those 3 I mentioned, so why the hell would we need a .300NM, or a .300 PRC for +2K engagements. That's just idiotic. Yes, I've been around a long time, and am quite aware of how twist rates, bullet weights, and seating depths work... I'm also quite aware of cartridge dynamics, as I design lots of wildcats. Twist rates only VERY slightly affect pressures...Sometimes not at all. So, how would modern twist rates affect reloading manuals for 1:9 twist barrels, other than not having load data for 1:7 or 1:8 twist barrels? The only trouble they would have, is getting it to stabilize or group with the heavy bullets. Now, if you're talking about seating depth causing pressures issues, yes, that does. But twist rates won't affect anything enough to even quantify. [/QUOTE]
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6.5 Creedmor- the Holy Grail?
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