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My TM VSR Doesn't Make Sense

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Old July 9th, 2014, 18:03   #16
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Originally Posted by ThunderCactus View Post
if you're getting the equivalent of 450fps with .30s and only 420fps on .20s, it just means you have joule creep. Which is GOOD because it means for SURE that you can enough air volume to make use of your barrel length.
besides, you're not using .20s so who cares what the performance is like on .20s?
The issue is that it's supposed to be near 500fps. That's my main problem.

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Originally Posted by Hectic View Post
heck yeah!! i found it lol.
scroll down a ways youll see the results of porting the cyl. so its matching the barrel volume
Scroll down where....? Also, I know about matching cylinder to barrel, and why AEG cylinders are ported.
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Old July 9th, 2014, 18:48   #17
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i guess the link would be quite helpfull. Derp lol
http://www.airsoftretreat.com/forums...?topic=88662.0
lil less than half way down (on my phone at least)
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Old July 9th, 2014, 21:04   #18
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Or, instead of porting, you can use the air brake, or make an even longer air brake to make your rifle even more silent.
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Old July 9th, 2014, 21:50   #19
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Have you tried suing the stock psiton oring with laylax piston? Did that with mine, and I had better average fps and less variation
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Old July 10th, 2014, 00:59   #20
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I think I got my Firefly hard buckings from Fire Support in the UK. Them and Airsoft Atlanta seem to have some decent VSR stuff, and usually in stock versus the big/common HK suppliers like Redwolf or eHobby.
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Old July 10th, 2014, 03:58   #21
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Have you tried suing the stock psiton oring with laylax piston? Did that with mine, and I had better average fps and less variation
I don't think you read my entire post. Yes I tried that.
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Old July 10th, 2014, 11:41   #22
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Firesupport has uk pricing though, typically twice as expensive
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Old August 25th, 2014, 18:39   #23
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So I found out the issue(s)...I think.

I never tried the taping before, but I put in a harder rubber (medium I guess, from a pistol), teflon taped the barrel/rubber, and also put in a 430mm tightbore instead of the standard 303mm tightbore. It shot 494fps!
I took out the 430mm and put the 303mm back in, and it was still shooting around 470 or so.
I put the PSS10 piston in, and it lowered the FPS so I'll be sticking with the stock TM piston, and whatever barrel gets me to the desired FPS I want to run.
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Old August 25th, 2014, 20:05   #24
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its wierd that yer piston is causing an issue, i have used two different laylax ones and never had a problem, tho i did find the stoco oring worked better, glad you got the issues semi solved tho
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Old August 26th, 2014, 01:43   #25
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And I tested shooting it off my deck. I was getting nice and straight shots (and hits) at 72yd / 215ft.
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Old August 26th, 2014, 10:14   #26
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at least yeah, what weight of bb were you using?
at ~500fps .40 or .43 should work well (altho i had issues getting enough hop so i took an aeg nub shaved just a lil off of it and stuck it between the lil fingers on the hop up arm, now i can over hop those .66 things)
you should be able to get 400-500 feet once you get it all dialed in (if u have the range to test it)
sounds like its comming along tho
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Old August 26th, 2014, 13:22   #27
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I was using 0.28's and 0.30's, although most of my shots were with 0.30's. (Bioval)

I doubt I could get to 400 or 500 ft.
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Old August 26th, 2014, 14:26   #28
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Quote:
Originally Posted by Hectic View Post
at least yeah, what weight of bb were you using?
at ~500fps .40 or .43 should work well (altho i had issues getting enough hop so i took an aeg nub shaved just a lil off of it and stuck it between the lil fingers on the hop up arm, now i can over hop those .66 things)
you should be able to get 400-500 feet once you get it all dialed in (if u have the range to test it)
sounds like its comming along tho
400-500ft? I call bs on that. In other words i want to see it Norm
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Old August 26th, 2014, 15:22   #29
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will do, you know where the trail opens up to the valley when headed to shale hill? I can hit a torso sized target from the hill to there. Its 400foot or beter
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Old August 26th, 2014, 17:48   #30
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Most people are horrible judges of distance. Not saying you are, but odds aren't good.

For my measurements I was using a rangefinder.
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