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Old 12-07-2011, 09:05 AM   #1 (permalink)
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T2 shoot down and IVG issues.. a little help please

I took my new to me T2 to a local indoor pump event last night. When I auto trigger I was getting alot of shoot down, about half velocity of a normal shot. I Upgraded the reg a bit to compensate and (mostly) got rid of my shoot down and I now have my reg set at roughly 325-350psi verified with a guage. But it seems like I have the IVG turned in alot, I am at 5-6 turns in and only getting 270FPS holding the handle forward.

Did I mess something up or is that normal?

EDIT: lower tube is clean and dry I cleaned it out before the event.

Last edited by spartan985; 12-07-2011 at 09:08 AM.
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Old 12-07-2011, 09:09 AM   #2 (permalink)
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Is the hammer clean?

Give the fine people at CCM a call and they will be more than happy to assist you.
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Old 12-07-2011, 09:12 AM   #3 (permalink)
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Check your timing - make sure it is right. If it is off - it can cause shoot down. However, I will wager this is not the issue.

Are you getting good paint to barrel match, is your tank being starved (ASA knob screwed in too far can cause that), double check the hammer to make sure it is clean and the bottom tube is as well.

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Old 12-07-2011, 05:05 PM   #4 (permalink)
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Hammer is clean and dry.

Also, I used about 2000-2500 psi in a 70/4500 for about 700 balls. Should it be more efficient than that?
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Old 12-07-2011, 05:19 PM   #5 (permalink)
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T2 shootdown

I traded for a T2 the other day and was mad when I got low velosity and shootdown. It was my tank. I had a new Ninja 50/45 and I don't know if the pin was shorter or it was hitting something when I screwed it in. I changed tanks and my problem went away. Guess I will go back now that you have brought it up and see what the problem is, but my other three tanks,with ninja regs, all work fine.
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Old 12-07-2011, 09:53 PM   #6 (permalink)
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Quote:
Originally Posted by spartan985 View Post
Hammer is clean and dry.

Also, I used about 2000-2500 psi in a 70/4500 for about 700 balls. Should it be more efficient than that?
That means you would get 10 tubes off a 70/4500. I would say that is pretty efficient.

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Old 12-07-2011, 10:00 PM   #7 (permalink)
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That means you would get 10 tubes off a 70/4500. I would say that is pretty efficient.

TF
No complaints, I just wanted to know how many shots per tank where normal. I'm completely happy with the efficency.

How many turns in from flush on the IVG is normal for roughly 275 FPS? It just seems like 5-6 turns in is alot to me, but might be normal. This is my first CCM and first sniper style pump.

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Old 12-07-2011, 10:04 PM   #8 (permalink)
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I'm just going to throw this out there... Have you had a chance to sweetspot your marker?

All of my CCMs that I've owned in the past, threeish turns in is 290-300FPS. For the field near my grad school, I readjusted the marker so about 2.5 turns in it is 280 FPS.

I know TF has manuals and how to's for all the CCM line.
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Old 12-08-2011, 07:53 AM   #9 (permalink)
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I would agree. You might be in the right 'psi' range for normal - but I have found with T2's - now and again a spring is soft or stiff and means that your sweet spot isn't exactly the same as others.

So, sweetspot your reg with the IVG two or three turns in from the back and note THAT pressure. That might be your pressure for that marker.

Some T2 users report a much lower pressure than 350. I would try to sweet spot it - and what you might find is that it likes 275 - and you have to crank in your IVG to overpower the over pressure.

Let me know.

Jason
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Old 12-08-2011, 11:36 PM   #10 (permalink)
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One other thing to check as well is that the spring hasn't been shortened. I've seen a few people who have cut their main spring to get a T2 down to 250 range for indoor play (without having to remove the vanity cap).
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