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Date Posted: 21:58:53 01/14/03 Tue
Author: DaRaptor
Author Host/IP: 128.187.0.166
Subject: Re: Need Help With Velocity
In reply to: Kenn 's message, "Need Help With Velocity" on 15:40:20 01/14/03 Tue

Make sure your bolt isn't upside down. I'm sure you've done that already, but just making sure, because it's been known to happen, even to people who know what they're doing....it's an easy mistake to make, especially if you're so good at re-assembling your F4 you can do it in your sleep, so you don't pay attention to your bolt, put it in upside down....I've done it myself at least once.

That said, follow the instructions in the FAQ (it's near the end) and *completely* disassemble and clean your marker. As usual with a "complete" disassembly/cleaning, there should be no reason to remove the valve body, vertical ASA, or cocking rail....clean everything else. Consider gently polishing everything according to Reaper's instructions (also in the FAQ), just to make sure there isn't some kind of corrosion or something bad in your lower chamber that is slowing down your striker.

Beyond that, check the inside of your bolt for solid obstructions, if you have a Venturi bolt, check the little re-cock adjuster...it shouldn't make THAT much difference, but if it's all the way backed out, it will lower your velocity. Also, when you remove the forward grip frame screw, you will be able to look through the valve, into the upper chamber....you should see a perfectly round hole....if there are any obstructions there, remove them.

That's all I can think of. Unless you have a regulator, or it's *extremely* cold, you should have enough pressure to fire at a decent speed, so that shouldn't be a problem...you might check with a tank screwed directly into the vertical ASA, just to make sure.

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Replies:

  • Re: Need Help With Velocity -- Big_Mac, 10:06:26 01/16/03 Thu
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