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IL, USA
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Posted: 2/13/2024 11:54:20 PM EDT
I have a AR-10 that I built with a Bear Creek Armory upper. I tried 3 brands of factory ammo and I’m piercing primers and occasionally the caster gets stuck so bad I have to tap it out with a squib rod. I tried polishing off .003 off the pin and it’s still doing it. I sure could use some ideas.
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MN, USA
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Posted: 2/14/2024 12:13:12 AM EDT
[#1]
Originally Posted By K9GSD: I have a AR-10 that I built with a Bear Creek Armory upper. I tried 3 brands of factory ammo and I’m piercing primers and occasionally the caster gets stuck so bad I have to tap it out with a squib rod. I tried polishing off .003 off the pin and it’s still doing it. I sure could use some ideas. Send it back. I would never have bought it, because of who made it, but they seem to be pretty willing to work to fix their shit that doesn't run. |
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IL, USA
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Posted: 2/14/2024 12:17:26 AM EDT
[#2]
I was afraid of that. Somebody at the range made a face when I told them my problems and I told them the brand.
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ID, USA
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Posted: 2/14/2024 1:33:12 AM EDT
[#3]
Caliber?
308 = normal bolt and firing pin. 6.5cm = high pressure bolt and firing pin. It makes a difference. 308 bolt shooting 6.5cm will pierce primers. Not all guns, seems to be chamber specific for whatever reason. |
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IL, USA
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Posted: 2/14/2024 3:15:29 PM EDT
[#4]
It’s a .308 with a standard bolt.
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Posted: 2/15/2024 12:07:33 PM EDT
[Last Edit: bfoosh06]
[#5]
Just so you know... pierced primers are very rarely from a to long firing pin.
Typically it is a chamber or freebore issue. Sorry to hear about your woes. Please let us know if Bear Creek fixes it. Can you post some pics of the fired cases ? Primers and the body of the case. |
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Posted: 2/15/2024 12:23:48 PM EDT
[#6]
Quote HistoryOriginally Posted By bfoosh06: Just so you know... pierced primers are very rarely from a to long firing pin. Typically it is a chamber or freebore issue. Sorry to hear about your woes. Please let us know if Bear Creek fixes it. Can you post some pics of the fired cases ? Primers and the body of the case. This guy gets it. |
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