Bushmaster 308 ORC dented shell casings

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11 years 10 months ago #16542 by oilfielder71
Bushmaster 308 ORC dented shell casings was created by oilfielder71
I got a new Bushmaster recently. I finally got to got to the range today. The ejected shell casings had a dent on the side about halfway down. I shot 10 rounds of Fusion 150 grain ammo, then I tried 10 rounds of remington 180 grain. Every brass casing had the same dent. Where they neck down there were some that had some marks or scratches.

Any thoughts or opinions would be appreciated.
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11 years 10 months ago #16549 by BUILDING MY SASS
Replied by BUILDING MY SASS on topic Bushmaster 308 ORC dented shell casings
The scratches on the neck are normal...My AR-10 does the same thing...
The other dent is most likely caused by the Deflector....I occasionally have the same dents also....Nothing to worry about...
BMS

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11 years 10 months ago #16550 by oilfielder71
Replied by oilfielder71 on topic Bushmaster 308 ORC dented shell casings
Appreciate the info. That's some thing I haven't seen before. Live and learn.

Thank you

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11 years 10 months ago #16553 by Charlie
Replied by Charlie on topic Bushmaster 308 ORC dented shell casings
That's odd. Our old HK-91 did the same thing with the addition of denting the throat. Made the brass worthless for reloading. I never found out why, but an ejection port buffer fixed the problem.

Our 10s throw the cases about 10 feet in the 2 o'clock direction, and they're clean as a whistle.

Charlie

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11 years 10 months ago #16554 by oilfielder71
Replied by oilfielder71 on topic Bushmaster 308 ORC dented shell casings
I'll give that a try. I had planned on reloading.

thanks,
Shawn

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11 years 10 months ago #16558 by OleCowboy
Replied by OleCowboy on topic Bushmaster 308 ORC dented shell casings
I did some research on that issue and its far from rare, not just in AR's but AK' and others. The standard fix seems to be the ejection port buffer no matter the weappon. You can buy them, make them or live with it...

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11 years 10 months ago #16588 by oilfielder71
Replied by oilfielder71 on topic Bushmaster 308 ORC dented shell casings
Thank you sir

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11 years 10 months ago #16678 by OleCowboy
Replied by OleCowboy on topic Bushmaster 308 ORC dented shell casings

oilfielder71 wrote: Thank you sir

You are welcome...you down my way working Eagle Ford Shale?

Got some friends in the business and it looks like there is a shale play out in W Tex and this is what he told me: "its Eagle Ford on STEROIDS". Look for an announcement this year sometime.

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