November 21st, 2012, 00:08
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#36
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Join Date: Dec 2001
Location: In my man cave
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Quote:
Originally Posted by wind_comm
I've read your posts thoroughly. there's no reason to look down on somebody who doesn't have a small placard under their name/didn't have access to the internet 10 years ago, or assume that they are 14.
the weight of a BB is next to irrelevant in a p*. given the correct settings, air rig and a proper length barrel, the fps of a .2 and a .66 will be the same.
similar to overvoluming a short barrelled AEG, there are a few people who do it so that they chrono at the field limit (usually indoors, so 350 or so) with .2g, but they use .28/.30+, and the end result is that the heavier round will still have a similar fps to the .2
given that a p* effectively has unlimited volume (unlike an aeg), you're simply not setting it correctly, or your barrel isn't long enough to allow enough gas expansion to accelerate the round properly.
and of course .12 won't do sh*t. I'm just saying, if you believe that HS5's 700@35 or 1200fps rifles were done with .12g rounds, then it's not nearly as difficult as I think it is because my rifle will do that as well. they're also definitely M4s.
I'd also like to see my rifle gamed over a season or more without maintenance on .28-.32 rounds, because it should have about 250 feet of range (if I did my r-hop install correctly this time). unfortunately, it wasn't finished until last month and will likely not be fielded for a long time because a: I'm broke and b: chronic back pain.
edit: also if it takes an m170 to get 460fps, you've got a SIGNIFICANT air leak. that should only take an m130.
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I was not looking down on anyone, you mention your rifle shooting 700fps with.12 bb after your post of the you tube video that featured something shooting 500+fps to me it is irrelevant or unfair comparison to the topic that was being discussed and I'm pretty sure you Alberta boys don't play with .12 ammo. The Polarstar set up was on my M82A1 with a custom 780mm inner ported barrel, if anything the airseal was not an issue as it was attached direct to the nozzle and anything over 700mm inner barrel you will need to get a more powerful power source or port the barrel (It was done at 210psi well over the 120psi limit that teh manufacturer recommend). The M170 spring was an attempt to create the most powerful AEG of the time (91/92), at that time the average was 435fps with .25bb this rifle was in fact a TM M4 base project with a PSG1 barrel and a .50BMG flashhider made by Tgoode himself, at the time we were experimenting and did not realise the importance of barrelsuck and other factors. It was a interesting attempt at customization during the very early stage of airsoft technology if you want to call it, it worked well in single shot but at full auto the bb was hitting each other. at first we were doubtfull that the battery or the piston will ever be able to pull that spring (360% PDI is a PSG1 spec'd spring)
Last edited by wildcard; November 21st, 2012 at 00:13..
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