Quote:
Originally Posted by wildcard
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)
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my quip about .12g rounds was clearly meant as comedy.
I'm not an expert on p* guns, but with a setup like that you should be able to get nearly 800fps. unfortunately, ASM is currently down so I wouldn't be able to point you at somebody more knowledgeable.
also, I can respect tinkering/experimenting at an early stage of technology. all the issues you've described would be cake to fix nowadays, because other people kept pushing the limits long after you and everybody else settled into a comfort zone.