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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone shooting a Nucleus action?
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<blockquote data-quote="CMP70306" data-source="post: 1481144" data-attributes="member: 36999"><p>That's an odd one that I can't say I've ever had happen to me, the only thing I can think of is the combination of a tight extractor and a thick spot on the case rim. In that scenario the rim wouldn't slip under the extractor when the bolt is pushed forward or allow it to snap over when the bolt closed yet it would still allow the cartridge to fire. I know some of the earlier models had tight extractors that were meant to be tuned by the owner/gunsmith to provide the best feeding for the particular cartridge used. I know the owner of ARC stated that he preferred to produce them with a tighter fit and have to tune them rather than too loose and have them not work.</p><p></p><p>After I found this thread I spent an hour or so running dummy cartridges through the Mausingfield and dry firing the Nucleus to practice my bolt manipulation & trigger control. The only issue I had with the Mausingfield was when I didn't have the bolt all the way back while seating a mag and the bolt caught the belt rather than the rim of the cartridge. </p><p></p><p>The only time it failed to extract was when I swapped bolt heads and tried running 30-06 from a Magpul mag that doesn't lock in the action. Turns out if you push up on the mag too hard it pinches the cartridge and prevents it from getting under the extractor. However I'm sure it would have extracted fine but it turns out that a 30-06 fits entirely into a .300 WM chamber so I had to bump it to get the case to fall out. However the other 49 times it fed fine even with a borderline non functioning set up.</p></blockquote><p></p>
[QUOTE="CMP70306, post: 1481144, member: 36999"] That’s an odd one that I can’t say I’ve ever had happen to me, the only thing I can think of is the combination of a tight extractor and a thick spot on the case rim. In that scenario the rim wouldn’t slip under the extractor when the bolt is pushed forward or allow it to snap over when the bolt closed yet it would still allow the cartridge to fire. I know some of the earlier models had tight extractors that were meant to be tuned by the owner/gunsmith to provide the best feeding for the particular cartridge used. I know the owner of ARC stated that he preferred to produce them with a tighter fit and have to tune them rather than too loose and have them not work. After I found this thread I spent an hour or so running dummy cartridges through the Mausingfield and dry firing the Nucleus to practice my bolt manipulation & trigger control. The only issue I had with the Mausingfield was when I didn’t have the bolt all the way back while seating a mag and the bolt caught the belt rather than the rim of the cartridge. The only time it failed to extract was when I swapped bolt heads and tried running 30-06 from a Magpul mag that doesn’t lock in the action. Turns out if you push up on the mag too hard it pinches the cartridge and prevents it from getting under the extractor. However I’m sure it would have extracted fine but it turns out that a 30-06 fits entirely into a .300 WM chamber so I had to bump it to get the case to fall out. However the other 49 times it fed fine even with a borderline non functioning set up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone shooting a Nucleus action?
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