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Posted: 9/27/2010 2:15:25 PM EDT
| This weekend I did a little shooting with the sbr and had some keyholing issues. Out of 100rds at least 10rds keyholed. I haven't noticed this before so is this just something to maybe chalk up as crappy ammo? The rifle is a DDM4 with the barrel cut down to 10.5 by ADCO. The rifle has less than 500rds through it. The ammo was georgia arms 55gr. I didn't get to test any other ammo but I will the next time out. |
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This weekend I did a little shooting with the sbr and had some keyholing issues. Out of 100rds at least 10rds keyholed. I haven't noticed this before so is this just something to maybe chalk up as crappy ammo? The rifle is a DDM4 with the barrel cut down to 10.5 by ADCO. The rifle has less than 500rds through it. The ammo was georgia arms 55gr. I didn't get to test any other ammo but I will the next time out. How does the muzzle look to the eye? |
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Quoted:
This weekend I did a little shooting with the sbr and had some keyholing issues. Out of 100rds at least 10rds keyholed. I haven't noticed this before so is this just something to maybe chalk up as crappy ammo? The rifle is a DDM4 with the barrel cut down to 10.5 by ADCO. The rifle has less than 500rds through it. The ammo was georgia arms 55gr. I didn't get to test any other ammo but I will the next time out. How does the muzzle look to the eye? Sorry to hijack but what should the muzzle look like? How do you somethings? |
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Sorry to hijack but what should the muzzle look like? How do you somethings? The barrel crown is what you'd want to look at - make sure there aren't any obvious problems with it (like a big burr, or something). barrel crown inspection method |
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After I built my SBR I ran into a problem in its first range outing. After a dozen rounds or so I noticed a keyhole in the target. Turns out my AAC Brakeout had started back itself off. Just a few degrees of twist on the muzzle device was loose enough to cause a keyhole.
I took it back home, pulled the device - cleaned the threads up and rockset it in place. No more problems for me. Posted Via AR15.Com Mobile |
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This weekend I did a little shooting with the sbr and had some keyholing issues. Out of 100rds at least 10rds keyholed. I haven't noticed this before so is this just something to maybe chalk up as crappy ammo? The rifle is a DDM4 with the barrel cut down to 10.5 by ADCO. The rifle has less than 500rds through it. The ammo was georgia arms 55gr. I didn't get to test any other ammo but I will the next time out. How does the muzzle look to the eye? Sorry to hijack but what should the muzzle look like? How do you somethings? Uhh how about not damaged? 
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