Hello!
I'm having weird brass ejection issues with my Mauser 98 in 7x57 and I can't identify the problem.
Extraction and feeding is perfect, but the ejection is erratic, no matter the speed I work the action with.
Sometimes the case would just barely jump off the bolt face and stay in the action, sometimes the case would almost-eject and stay in a 45 degree angle in the action, sometimes it would eject just fine. With both empty brass and live rounds.
Ejection gets much better with an empty magazine. Ejection is especially bad with the third round of the magazine.
I made a video showing the ejection issue: https://www.youtube.com/watch?v=2NyOg-1gtrE
This happens: (The case mouth is damaged from repeatedly feeding and extracting it)
I disassembled and cleaned the ejector but that didn't help, I swapped the entire unit with that of my K98k and the issue didn't resolve.
I took out the bolts and with empty brass compared the extractor tension of my K98 bolt with the 7x57 bolt, it was the same. I swapped extractors and the problem persists. I carefully examined the process of extraction and ejection, the brass does not slip from the bolt face.
One thing I noticed is that when I very slowly pull the bolt back all the way till the spot where the ejector kicks out the case I need much more force on my problematic 7x57 Mauser than on my k98k mauser which works fine.
I have to pull like 10lbs or so till the ejector kicks out the case with an audible ''ting'', my k98k does this with half the effort.
However, I did not find any burrs or stickiness with the ejector- and as I said, I swapped the entire unit and the problem was still there.
The rifle had a problem with the follower, it would get stuck at the rear of the magazine box resulting in feeding problems. i polished it till that problem went away. Could this ejector issue be a remnant of that problem? As I said, feeding and extraction are flawless and smooth , and I cannot get the follower to get stuck even if I try with my fingers.
I took my vernier gauge and compared the extractor slot in the bolt face with that of my working K98k and they are basically identical. Also, no visible burrs.
Thanks for any help!
I'm having weird brass ejection issues with my Mauser 98 in 7x57 and I can't identify the problem.
Extraction and feeding is perfect, but the ejection is erratic, no matter the speed I work the action with.
Sometimes the case would just barely jump off the bolt face and stay in the action, sometimes the case would almost-eject and stay in a 45 degree angle in the action, sometimes it would eject just fine. With both empty brass and live rounds.
Ejection gets much better with an empty magazine. Ejection is especially bad with the third round of the magazine.
I made a video showing the ejection issue: https://www.youtube.com/watch?v=2NyOg-1gtrE
This happens: (The case mouth is damaged from repeatedly feeding and extracting it)
I disassembled and cleaned the ejector but that didn't help, I swapped the entire unit with that of my K98k and the issue didn't resolve.
I took out the bolts and with empty brass compared the extractor tension of my K98 bolt with the 7x57 bolt, it was the same. I swapped extractors and the problem persists. I carefully examined the process of extraction and ejection, the brass does not slip from the bolt face.
One thing I noticed is that when I very slowly pull the bolt back all the way till the spot where the ejector kicks out the case I need much more force on my problematic 7x57 Mauser than on my k98k mauser which works fine.
I have to pull like 10lbs or so till the ejector kicks out the case with an audible ''ting'', my k98k does this with half the effort.
However, I did not find any burrs or stickiness with the ejector- and as I said, I swapped the entire unit and the problem was still there.
The rifle had a problem with the follower, it would get stuck at the rear of the magazine box resulting in feeding problems. i polished it till that problem went away. Could this ejector issue be a remnant of that problem? As I said, feeding and extraction are flawless and smooth , and I cannot get the follower to get stuck even if I try with my fingers.
I took my vernier gauge and compared the extractor slot in the bolt face with that of my working K98k and they are basically identical. Also, no visible burrs.
Thanks for any help!
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