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Hunting
Extreme Long Range Hunting & Shooting (ELR)
CZ USA 550 Magnum HET 338 Lapua
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<blockquote data-quote="sable tireur" data-source="post: 2954068" data-attributes="member: 27307"><p>The one important bit of information to pay close attention to is the twist rate; it's 1:14" which is pretty slow for the Lapua. This probably contributed to it being discontinued in 2013...</p><p></p><p>I was using the Speer 210 gr. BTSP with this twist rate. You can use slightly longer bullets but you will lose BC. Shooting them in will give you a good idea of performance. You can also use Berger's Stability Calculator:</p><p></p><p><a href="https://bergerbullets.com/twist-rate-calculator/" target="_blank">https://bergerbullets.com/twist-rate-calculator/</a></p><p></p><p>For what were reasonable prices, the CZ550 was a brick outhouse design using the control round feeding of the Mauser design. They were a pinch more complicated to assemble when completely stripped down but a once through made everything clear. We were able to buy directly from CZ with a short road trip to pick up either actions or complete rifles.</p><p></p><p>Enjoy!</p><p></p><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="sable tireur, post: 2954068, member: 27307"] The one important bit of information to pay close attention to is the twist rate; it's 1:14" which is pretty slow for the Lapua. This probably contributed to it being discontinued in 2013... I was using the Speer 210 gr. BTSP with this twist rate. You can use slightly longer bullets but you will lose BC. Shooting them in will give you a good idea of performance. You can also use Berger's Stability Calculator: [URL]https://bergerbullets.com/twist-rate-calculator/[/URL] For what were reasonable prices, the CZ550 was a brick outhouse design using the control round feeding of the Mauser design. They were a pinch more complicated to assemble when completely stripped down but a once through made everything clear. We were able to buy directly from CZ with a short road trip to pick up either actions or complete rifles. Enjoy! :) [/QUOTE]
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Hunting
Extreme Long Range Hunting & Shooting (ELR)
CZ USA 550 Magnum HET 338 Lapua
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