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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone shooting a CZ550?
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<blockquote data-quote="benchracer" data-source="post: 469837" data-attributes="member: 22069"><p>I am in the process of load development for my 22-250 (not a CZ, but a sporterized BRNO 98 mauser). </p><p></p><p>One thing to pay close attention to is the max COAL needed to reach the rifling. I checked my chamber dimensions and found that I need to load my bullets seated pretty long in order to minimize the jump to the rifling. Factory loads seated to SAAMI specs have so far not shot particularly well in my rifle. My long seated handloads, on the other hand, are showing promise.</p><p></p><p>I have done some research online and it appears that 22-250's with long chamber throats are common.</p><p></p><p>I have not shot anything but paper with my rifle, so I cannot comment on terminal performance. So far, it is showing a definite preference for 50 and 52 grain bullets (I am shooting V-MAX and A-MAX, respectively). Barrel twist rate is 1:14. It stabilizes 55gr bullets with no problem, but does not shoot them as well as the lighter weights. Ditto for the 60gr Hornady spire points that I tried.</p><p></p><p>I use Remington and Winchester brass and CCI Large Rifle primers.</p></blockquote><p></p>
[QUOTE="benchracer, post: 469837, member: 22069"] I am in the process of load development for my 22-250 (not a CZ, but a sporterized BRNO 98 mauser). One thing to pay close attention to is the max COAL needed to reach the rifling. I checked my chamber dimensions and found that I need to load my bullets seated pretty long in order to minimize the jump to the rifling. Factory loads seated to SAAMI specs have so far not shot particularly well in my rifle. My long seated handloads, on the other hand, are showing promise. I have done some research online and it appears that 22-250's with long chamber throats are common. I have not shot anything but paper with my rifle, so I cannot comment on terminal performance. So far, it is showing a definite preference for 50 and 52 grain bullets (I am shooting V-MAX and A-MAX, respectively). Barrel twist rate is 1:14. It stabilizes 55gr bullets with no problem, but does not shoot them as well as the lighter weights. Ditto for the 60gr Hornady spire points that I tried. I use Remington and Winchester brass and CCI Large Rifle primers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone shooting a CZ550?
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