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Long Range Hunting & Shooting
Which powder for 338 lapua improved?
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<blockquote data-quote="wboregon" data-source="post: 1426636" data-attributes="member: 102916"><p>I'm not quite understanding you, if both cartridges are reaching the same speed/pressures, one using a smaller space and less powder and one using more space with more powder, what is the difference? What makes you say that the smaller OAL is creating un-safe pressures?</p><p></p><p>Tom</p></blockquote><p></p><p>Biggest difference is probably an earlier spike in pressure with the smaller volume cases? but that's just a best guess.</p><p></p><p>I haven't started load development on my edge yet, but it does seem like quite a few people are breaking 3k with the 300gr's bu mostly with a much long OAL then what you were working with. my edge allows me to seat 265gr ABLRs out to an OAL ~3.94 and a ComparatorOAL of 3.181 to the ogive and is about .010 off the lands.</p><p></p><p>I'll have to look and see what my 300 grain CC's come out to, but those have a fairly short nose compared to something like a Berger OTM.</p><p>[/QUOTE]</p>
[QUOTE="wboregon, post: 1426636, member: 102916"] I’m not quite understanding you, if both cartridges are reaching the same speed/pressures, one using a smaller space and less powder and one using more space with more powder, what is the difference? What makes you say that the smaller OAL is creating un-safe pressures? Tom[/QUOTE] Biggest difference is probably an earlier spike in pressure with the smaller volume cases? but that's just a best guess. I haven't started load development on my edge yet, but it does seem like quite a few people are breaking 3k with the 300gr's bu mostly with a much long OAL then what you were working with. my edge allows me to seat 265gr ABLRs out to an OAL ~3.94 and a ComparatorOAL of 3.181 to the ogive and is about .010 off the lands. I'll have to look and see what my 300 grain CC's come out to, but those have a fairly short nose compared to something like a Berger OTM. [/QUOTE]
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Which powder for 338 lapua improved?
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