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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New GSC 338 LRH bullets.
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<blockquote data-quote="ZAR LRH" data-source="post: 1034733" data-attributes="member: 86870"><p>Hi azsugarbear. The HV range of bullets is their hunting line of bullets. Didn't you perhaps read up on the SP bullet range? Did you follow the link to the pages in my first post?</p><p></p><p>Given the advertised G1 BC they are definitely long range bullets. Would love to see what BC's Brian Litz will give them so we can compare apples with apples. </p><p></p><p>Given the advertised impact velocities and double calibre expansion at these minimum velocities I would consider them hunting bullets. They advertise the following with regards to the 285gr:</p><p>Minimum Impact Speed: 1600fps to 1700fps (At this impact speed, the bullet will open to at least double calibre)</p><p></p><p>And for the 257gr</p><p>Minimum Impact Speed: 1200fps to 1300fps (At this impact speed, the bullet will open to at least double calibre)</p><p></p><p>Yes, the required twist rate to stabilise these bullets is a little tight. But is there perhaps something I'm missing? If I use the stability calculator on the Berger website, I get a stability factor of 1.54 given a 1:9.3 barrel at 2800fps at sea level and 10 degree Celsius. I see for SG of 1.5 the recommend a 1:9 twist.</p><p></p><p>I would go the 1:9.3 twist that will allow me to shoot other bullets as well.</p></blockquote><p></p>
[QUOTE="ZAR LRH, post: 1034733, member: 86870"] Hi azsugarbear. The HV range of bullets is their hunting line of bullets. Didn’t you perhaps read up on the SP bullet range? Did you follow the link to the pages in my first post? Given the advertised G1 BC they are definitely long range bullets. Would love to see what BC’s Brian Litz will give them so we can compare apples with apples. Given the advertised impact velocities and double calibre expansion at these minimum velocities I would consider them hunting bullets. They advertise the following with regards to the 285gr: Minimum Impact Speed: 1600fps to 1700fps (At this impact speed, the bullet will open to at least double calibre) And for the 257gr Minimum Impact Speed: 1200fps to 1300fps (At this impact speed, the bullet will open to at least double calibre) Yes, the required twist rate to stabilise these bullets is a little tight. But is there perhaps something I’m missing? If I use the stability calculator on the Berger website, I get a stability factor of 1.54 given a 1:9.3 barrel at 2800fps at sea level and 10 degree Celsius. I see for SG of 1.5 the recommend a 1:9 twist. I would go the 1:9.3 twist that will allow me to shoot other bullets as well. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New GSC 338 LRH bullets.
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