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AR .260 chews 'em up and spits 'em out...

 
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  #8  
Old 06-28-2012, 09:03 PM
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Re: AR .260 chews 'em up and spits 'em out...

Also forgot to add youre gas rings look fine
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  #9  
Old 07-06-2012, 11:46 PM
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Re: AR .260 chews 'em up and spits 'em out...

It might be as easy to solve as installing and tuning an adjustable gas block.
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Old 07-07-2012, 04:07 AM
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Re: AR .260 chews 'em up and spits 'em out...

Quote:
Originally Posted by Predator Strikeforce View Post
Thanks for the advice thus far guys.

I've tried handloads and four different factory loads from four different manufacturers. That's why I never imagined that the problem could be the ammo. I'm not dismissing anyones advise at this point. I hope to find the culprit soon.

Also, the gun didn't come from DPMS directly so I can not call them. It's a semi custom build using their upper and lower. It has a Bartlien barrel, Jard adjustable trigger and Young Manufacturing bolt carrier group. The company that built the gun has been quite tough to get ahold of. Actually almost impossible.

Not familiar with Steve at ADCO. Where can I find his info?
My bet would be the throat is too short and neck too tight causing serious overpressure problems even with standard loads.

It needs to go to a good AR specialist gunsmith before it blows up in your face.
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Old 07-07-2012, 04:09 AM
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Re: AR .260 chews 'em up and spits 'em out...

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Originally Posted by brentc View Post
It might be as easy to solve as installing and tuning an adjustable gas block.
That could actually cause more harm since it appears to be an overpressure problem. Restricting the flow at the gas block just adds more pressure in the chamber and bore.
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Old 07-07-2012, 11:42 PM
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Re: AR .260 chews 'em up and spits 'em out...

I am with WildRose....

If it were me, it would got to my smith, along with the brass for him to look at as well. I wouldn't shoot it at all until a professional looked at it.

Basic reloading says pierced primers are caused from unsafe chamber pressures. I have also seen very new BCG's (as you state yours is) get torn to pieces pre maturely from other reloaders running very hot loads all the time.
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  #13  
Old 07-21-2012, 02:07 PM
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Re: AR .260 chews 'em up and spits 'em out...

I agree with everyone who mentioned overpresure.

Are the primers compromised on factory loads as well?

If you have a stoney point you could check to see where your lands are.

Can you post your loads including powder Bullet, weight, OAL and or BTO as well as the length to landsif you have it.
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