Hi there,
I got out to the outdoor range today (with a buddy...you know who you are and what a gas we had! Thank you! Give my condolences to the Italian Princess) and gave two CSA VZ58 Sporter Rifles a pretty good test drive.
Both guns exhibit minor extraction issues, and upon close inspection of the fired brass there is evidence the extractors are not only tearing at the rim of the case, but doing so in a manner where they engage what I would consider less-than-ideal surface area within the rim. The geometry of the extractor marking on the case have me wondering if the CSA folks actually put the work into re-engineering and manufacturing an extractor for their .223 guns, or if they rather simply used extractors on hand designed for guns set up in the original 7.62x39.
Both guns exhibit the same extraction issues with both factory winchester 55gr FMJ and my service rifle handloads (based on new winchester brass as well).
Anyone else having similar issues? Or would anyone else know about the engineering history of CSA's conversion of the platform from 7.62x39 to 5.56x45?
I'm less worried about the reliability aspect of the issue and more worried about brass longevity as the way the extractors are deforming the rim of the case there will not be many useful firings.
Thanks in advance to anyone who has some beta to share!
Cheers,
Brobee
I got out to the outdoor range today (with a buddy...you know who you are and what a gas we had! Thank you! Give my condolences to the Italian Princess) and gave two CSA VZ58 Sporter Rifles a pretty good test drive.
Both guns exhibit minor extraction issues, and upon close inspection of the fired brass there is evidence the extractors are not only tearing at the rim of the case, but doing so in a manner where they engage what I would consider less-than-ideal surface area within the rim. The geometry of the extractor marking on the case have me wondering if the CSA folks actually put the work into re-engineering and manufacturing an extractor for their .223 guns, or if they rather simply used extractors on hand designed for guns set up in the original 7.62x39.
Both guns exhibit the same extraction issues with both factory winchester 55gr FMJ and my service rifle handloads (based on new winchester brass as well).
Anyone else having similar issues? Or would anyone else know about the engineering history of CSA's conversion of the platform from 7.62x39 to 5.56x45?
I'm less worried about the reliability aspect of the issue and more worried about brass longevity as the way the extractors are deforming the rim of the case there will not be many useful firings.
Thanks in advance to anyone who has some beta to share!
Cheers,
Brobee


















































