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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mosin nagant bolt problem
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<blockquote data-quote="Carman" data-source="post: 620637" data-attributes="member: 40372"><p>I am pretty certain that the problem is varnish buildup inside the chamber, either from the cosmoline and/or lacquer from the ammo. I sprayed some easy off oven cleaner in the chamber and let it set about 5 minutes. Then I ran a chamber brush in a gave it a good scrubbing. Then I ran solvent soaked patches in and they came out not only nasty, but they were VERY sticky. The chamber and bore are very clean now. If I shoot the ammo and at first, it functions ok, and then gets worse the more I shoot, then I will know that it is the ammo. If it continues to function fine, then I will know that it was a varnish buildup from the cosmoline. These seem to be the two most prevalent problems with the bolt become difficult to operate. I had the headspace and chamber tolerance checked this morning, so I am pretty sure it is lacquer from the ammo or the chamber just needed a good cleaning.</p></blockquote><p></p>
[QUOTE="Carman, post: 620637, member: 40372"] I am pretty certain that the problem is varnish buildup inside the chamber, either from the cosmoline and/or lacquer from the ammo. I sprayed some easy off oven cleaner in the chamber and let it set about 5 minutes. Then I ran a chamber brush in a gave it a good scrubbing. Then I ran solvent soaked patches in and they came out not only nasty, but they were VERY sticky. The chamber and bore are very clean now. If I shoot the ammo and at first, it functions ok, and then gets worse the more I shoot, then I will know that it is the ammo. If it continues to function fine, then I will know that it was a varnish buildup from the cosmoline. These seem to be the two most prevalent problems with the bolt become difficult to operate. I had the headspace and chamber tolerance checked this morning, so I am pretty sure it is lacquer from the ammo or the chamber just needed a good cleaning. [/QUOTE]
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Mosin nagant bolt problem
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