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Author Topic: Tightbore  (Read 1059 times)

Offline pilz

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Tightbore
« on: August 08, 2006, 12:19:51 PM »
Im getting a tightbore for my CA CQB, and i was wondering who makes the best ones. I know KM and Prometheus are good but is systema? And what is the length on the CQB barrel?
« Last Edit: December 31, 1969, 05:00:00 PM by pilz »
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Offline PolandsLeftTesticle

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« Reply #1 on: August 08, 2006, 01:05:24 PM »
http://www.classicarmy.com/product-popu ... ductid=459

I know I'm probably totally wrong about this but I look at Systema and Prometheus the same way.
« Last Edit: December 31, 1969, 05:00:00 PM by PolandsLeftTesticle »
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Offline Vince

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« Reply #2 on: August 08, 2006, 01:10:04 PM »
Quote from: "PolandsLeftTesticle"
I know I'm probably totally wrong about this


Yeah, you are.

If you compare Prometheus barrels to Systema, they have a more aggressive crown (usually finished much better as well), and a thicker wall. For me, the inner barrel is a tight fit into the outer barrel, which is how I like it. Keeps it from wobbling too much. I also feel that the heavier barrel stays truer during shipping.

Then again, the two barrels are also in different classes. The Prometheus is markedly more (almost 50%) and is also tighter (6.03mm).
« Last Edit: December 31, 1969, 05:00:00 PM by Vince »
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Offline pilz

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« Reply #3 on: August 08, 2006, 02:24:27 PM »
im going to buy a KM MC51 tighbore because thats the closest to the CQB. anything else i can do to make it more accurate, it shoots around 315 with .25's, i was thinking maybe a new nozzel, but i don't want my gun to crap out. form upgrading it.
« Last Edit: December 31, 1969, 05:00:00 PM by pilz »
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Offline southpaw

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« Reply #4 on: August 08, 2006, 05:52:30 PM »
if you want cost effectiveness get a KM.
if you want best performance get Prometheus.
systemas still makes its barrels out of brass so the inside finish wears easier.
« Last Edit: December 31, 1969, 05:00:00 PM by southpaw »
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Offline pilz

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« Reply #5 on: August 08, 2006, 06:31:06 PM »
KM adn prometheus are the same price, but i hear KM is better so thats what im getting.
« Last Edit: December 31, 1969, 05:00:00 PM by pilz »
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Offline busta_cap

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« Reply #6 on: August 08, 2006, 06:42:00 PM »
Quote from: pilz
KM adn prometheus are the same price, but i hear KM is better so thats what im getting.
Obviously you didn't read anything anyone posted...

Prometheus is the way to go...But beware If you do alot of Auto shooting to have it sittnig int he hop chamber very correctly or it can jam due to the extra tightness. :shock:
« Last Edit: December 31, 1969, 05:00:00 PM by busta_cap »
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Offline pilz

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« Reply #7 on: August 08, 2006, 07:39:32 PM »
don't worry, i'll have someone good install it. its just i can't find the correct length from them.
« Last Edit: December 31, 1969, 05:00:00 PM by pilz »
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Offline Fish

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« Reply #8 on: August 09, 2006, 08:08:33 AM »
Well I have an MC51 prometheus in my gun and it deosn't even go to the tip of the flash hider... so I'm guessing that its allitle short.
« Last Edit: December 31, 1969, 05:00:00 PM by Fish »
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Offline pilz

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« Reply #9 on: August 09, 2006, 08:22:03 AM »
did you check the length of tighbore you needed before you bought it?
« Last Edit: December 31, 1969, 05:00:00 PM by pilz »
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Offline Fish

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« Reply #10 on: August 09, 2006, 08:25:42 AM »
Well no where does it say the inner barrel length of my gun. So I tryed a MP5 barrel, and Paul said it was too short, and suggested I get the MC51. I did, and it fit well.
But my gun is shorter than yours.
« Last Edit: December 31, 1969, 05:00:00 PM by Fish »
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Offline hostiledemise

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« Reply #11 on: August 09, 2006, 10:18:10 AM »
Pilz your barrel length is 280mm and I would highly recommend the KM MC51 barrel, its 285 so its almost perfect
« Last Edit: December 31, 1969, 05:00:00 PM by hostiledemise »
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