I know this topic comes up a lot, but I haven't found a good amount of detailed info on it.
So the bolt on my 91/30 cycles smoothly both without ammo and with a-zoom snap caps, but I had sticky bolt/extraction after firing with steel cased surplus ammo (unknown country/manufacture). I'm pretty sure it's not extra cosmoline coming out from the heat because it started after the very first shot. I don't think it would be the extractor itself if it works with the snap caps. What might be causing this? and should I try a different ammo or send it to a gunsmith?
If it helps any, my brother used his calipers to check the dimensions of a fired case against the snap caps and unfired brass, and the fired case is 0.1 mm thicker right above the rim (which I would expect from steel cased ammo) while the snap caps have slightly thicker rims. Could either of these explain the problem and how would I fix it?
Thanks in advance for any answers and advice.
So the bolt on my 91/30 cycles smoothly both without ammo and with a-zoom snap caps, but I had sticky bolt/extraction after firing with steel cased surplus ammo (unknown country/manufacture). I'm pretty sure it's not extra cosmoline coming out from the heat because it started after the very first shot. I don't think it would be the extractor itself if it works with the snap caps. What might be causing this? and should I try a different ammo or send it to a gunsmith?
If it helps any, my brother used his calipers to check the dimensions of a fired case against the snap caps and unfired brass, and the fired case is 0.1 mm thicker right above the rim (which I would expect from steel cased ammo) while the snap caps have slightly thicker rims. Could either of these explain the problem and how would I fix it?
Thanks in advance for any answers and advice.
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