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Posted: 1/21/2013 3:37:11 AM EDT
[Last Edit: 1/21/2013 3:44:09 AM EDT by wyldefreebyrd]
Picked up a rifle last week, Spike's Punisher lower with a supposed DPMS upper. The barrel is marked with 5.56 NATO 1-7, nothing under the hand guard. From what could be found DPMS barrels are 1/9, so is this a decent barrel or does it need to be changed?

http://www.ferreiras.net/pics/guns/barrel.JPG

http://www.ferreiras.net/pics/guns/spikes.JPG

http://www.ferreiras.net/pics/guns/spikes2.JPG
Link Posted: 1/21/2013 3:55:22 AM EDT
DSA, maybe? They make a CL 1-7. Perhaps someone with a DSA will come along and compare your photo to their barrel.

Link Posted: 1/21/2013 4:16:34 AM EDT
At this point a person would have to psychic to know if you have a good barrel.
Link Posted: 1/21/2013 4:22:42 AM EDT
Are DSA barrels decent for a paper puncher?
Link Posted: 1/21/2013 4:27:55 AM EDT
Originally Posted By wyldefreebyrd:
Are DSA barrels decent for a paper puncher?


Yes. Absolutely nothing wrong with them for that purpose.

Link Posted: 1/21/2013 5:26:44 AM EDT
Who knows if it's even a DSA barrel?

Is is chrome lined?

BTW, my most accurate CQB AR uses a 5.56 chambered, 1:7 twist barrel. I prefer the 1:7 barrels over the 1:9's (just my preference)
Link Posted: 1/21/2013 5:28:06 AM EDT
I have a DSA barrel and it is not marked like that. That being said, my DSA is excellent and very accurate. I think you are fine
Link Posted: 1/21/2013 8:20:57 AM EDT
Shoot it and find out. Try a couple different loads, and try some heavier bullets like 65 or 69grs for that 1:7. General consensus is that twist will shoot bullets over 55 better than less than 55gr.
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