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Broken bolt carrier
Posted: Thu Aug 13, 2020 2:44 pm
by cantgrowup
I just bought a really nice Model 8 in .30 Rem with the plain flat-knob stock. Bluing is 90-95% and wood is free of any significant scratches or dents. The bore is perfect. It doesn't look like the gun had been shot that much, but when I tore it down completely prior to firing, I discovered that the bolt carrier had a chipped area inside the back of the bolt cavity where the firing pin goes through. A smaller piece was found inside the bolt and it may have been the entire broken off piece but worn down by banging around inside the carrier. You can see the grainy matrix of the bolt carrier where the piece is missing from 1 o'clock to 7 o'clock.
My question is whether or not the bolt carrier is still functional? I've already bought an entire .30 Rem bolt assembly to replace it but don't know if the carrier is any good.
Re: Broken bolt carrier
Posted: Sun Aug 16, 2020 8:19 am
by ranman
I would think the bolt needs to be checked for cracks before firing. This is significant problem and for safety's sake should not be used. Replace the bolt and have this one looked at . LPI ( liquid penetrate inspection) can be done at some machine shops at a reasonable price . This process will identify any cracks. Hope this helps
Re: Broken bolt carrier
Posted: Sun Aug 16, 2020 5:42 pm
by chas1949
Scrap bin, us your replacement. Safety first
Re: Broken bolt carrier
Posted: Tue Aug 18, 2020 4:56 pm
by cantgrowup
Sound advice. Will use entire replacement bolt carrier/bolt assembly when I get it.
Re: Broken bolt carrier
Posted: Wed Aug 26, 2020 8:11 am
by cantgrowup
I got my replacement bolt assembly yesterday and took it apart to clean and inspect. The rear of the bolt cavity is different from the broken one. The back surface is flat. I don't remember seeing a raised cone on the rear of any of the other bolt carriers in my other eight Model 8/81 rifles when I inspected them. Has anyone else ever seen a bolt carrier like my broken one with the raised cone in the rear?
Re: Broken bolt carrier
Posted: Fri Jan 22, 2021 9:16 pm
by Hibby83
cantgrowup wrote: ↑Wed Aug 26, 2020 8:11 am
I got my replacement bolt assembly yesterday and took it apart to clean and inspect. The rear of the bolt cavity is different from the broken one. The back surface is flat. I don't remember seeing a raised cone on the rear of any of the other bolt carriers in my other eight Model 8/81 rifles when I inspected them. Has anyone else ever seen a bolt carrier like my broken one with the raised cone in the rear?
I have one that shares the raised cone that you speak of. I’m pretty sure that’s the only one I’ve seen.