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Posted: 9/12/2014 11:39:11 AM EDT
| First off, I'm new to the forum but figured I'd jump right in. I have an 5.56 upper w/ 1/9 twist that regardless of wether I shoot .223 or 5.56 my rounds are tumbling BEFORE they hit the target. I first noticed it while shooting Wolf .223 a couple years back. Last week, I was out using Winchester 5.56 and had the same thing happen. I've been using 55 grain rounds but gave the heavier ones a try just to see if it would be different. It wasn't. I was just curious if anyone else had any similar problems and if so, what was the conclusion/solution. Thanks for any input and help |
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https://www.ar15.com/archive/topic.html?b=3&f=118&t=583485
Basically, clean it and remove copper fouling, remove FH and inspect muzzle, bore and chamber, maybe need to replace barrel. Good news is that barrels can can be found for good prices if you hunt for them. |
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Quoted:
https://www.ar15.com/archive/topic.html?b=3&f=118&t=583485 Basically, clean it and remove copper fouling, remove FH and inspect muzzle, bore and chamber, maybe need to replace barrel. Good news is that barrels can can be found for good prices if you hunt for them. Make sure you use a good bore brush and some good solvent. When you start running clean patch through it, do it until you get hardly and residue showing. Go shoot it again, only this time, do not shoot any Wolf steel ammo. Use some good brass .223 or 5.56. Let us know the result. |
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sounds like keyhole (ing) effect. Usually, this is seen when the rifle twist rate is improper for the ammo. You used different ammo and had the same result so it is something in your rifle. The first place I would check is the crown of the muzzle. This is the first place that gets damaged and causes inaccuracy issues. Re-crowning the barrel will be as expensive as buying a new barrel. Do check for damage in your bore as well.
good luck. |
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Quoted:
sounds like keyhole (ing) effect. Usually, this is seen when the rifle twist rate is improper for the ammo. You used different ammo and had the same result so it is something in your rifle. The first place I would check is the crown of the muzzle. This is the first place that gets damaged and causes inaccuracy issues. Re-crowning the barrel will be as expensive as buying a new barrel. Do check for damage in your bore as well. good luck. 
There are plenty of things besides crown damage that can cause keyholing. OP has stated that he has a FH on. Why would you assume crown damage? OP, did I miss how many rounds through the barrel? |
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There are plenty of things besides crown damage that can cause keyholing. OP has stated that he has a FH on. Why would you assume crown damage?
OP, did I miss how many rounds through the barrel? I have sent about 1500-2000 rounds down range through that barrel |
Just for SNG Give the barrel a real good cleaning and switch to better quality ammo JUST to see what happens. Worst that will happen is you end up with a clean gun and out the price of a box of Quality ammo. One less possibility checked off the list. I'm Not saying your ammo is cheap junk but I have heard of the Comm-bloc stuff do funny things from time to time. Maybe the problem, Maybe not.
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