Airsoft Lost Fps When New Barrel and Hop Up Installed

Author Comment sheywood Inferior Member
Registered:1534212571
Posts: 26

Posted 1537829747 · Edited	Reply with quote #1

Any thoughts on why I didn't get the speed upwardly others have spoken about? QUALITATIVE TESTING METHODOLOGY At that place is a tree in my back one thousand about 85 feet from my patio doors. With the stock barrel a .28g BB gets to the tree on a flat line in a "one count" With the 247 mm barrel a .28g BB barely reaches the tree subsequently clearly dropping a few feet and takes a little more than a "two count" ELIMINATING USER ERROR When I installed the 247 mm barrel I used a new butt clip I lined the "ridge" inside the bucking up with the groove in the 247 mm barrel After poor results I reinstalled the stock butt post-obit same process higher up (including new barrel clip) Gun again delivers .28g bb to tree on a apartment line in a "i count" Reinstalled the long butt over again following in a higher place (including new barrel prune) (yes, I ordered 4 with the barrel cuz I read that they tend to break and I did indeed break them every time) Afterward a second set up of poor results, reinstalled stock and again dorsum to delivering .28g bb to tree on a flat line in a "one count" I pre-tested all butt / hop-up combos with with the bb driblet method. In all cases the bb went through bottom of hop upward and entered the bucking cleanly, and could be dislodged with the slightest force per unit area
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kinesis Regular Member
Registered:1514841220
Posts: 102

Posted 1537831961 · Edited	Reply with quote #2

did you adjust hop up for new butt? but my 2 cents only =) -yard
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sheywood Junior Fellow member
Registered:1534212571
Posts: 26

Posted 1537894097 · Edited	Reply with quote #3

Appreciatefeedback kinesis Yes did accommodate hop up didn't seem to assistance. That said, I did not check to ensure barrel was totally clean (per orig). I'll double cheque make certain no goop in there
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B3H1NDu Regular Fellow member
Registered:1469163856
Posts: 229

Posted 1538435874	Reply with quote #4

Sounds similar you're suffering from undervoluming. Basically, there isn't enough air in the cylinder to properly push your BB downward the longer barrel length. May I ask why you opted for a longer barrel? Barrel length really does not affair for accuracy or range in airsoft and having a longer barrel eliminates the best things most the Vector IMO. If you lot wanted meliorate range/accuracy you should have only bumped up BB weight.
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sheywood Junior Fellow member
Registered:1534212571
Posts: 26

Posted 1538440392 · Edited	Reply with quote #5

B3H1NDu, below I answer your question, only first... Information technology WAS USER ERROR. Ignore the previous chest pounding... I was declining to reinstall the large jump that goes betwixt the hopup and the outer barrel in all of the above scenarios. This acquired a driblet in FPS that presented itself severely with the longer barrel just did not present sufficiently with the stock barrel for me to detect using my unscientific method. I saw the leap under my piece of work bench final dark and thought "Huh, I wonder if that came out of the vector...". Pulled up the Vector parts list and realized it probably did... Larger spring and longer butt now installed and this thing is a laser out to about 85 ft west/.28. I'll chrono at the field this weekend and report back results B3H1NDu, re why the longer butt I wanted to see if I could do it. Turns out that yes, eventually, I could effigy information technology out It was driving me crazy to think in that location was all that potential performance in the gun I was not unlocking I chose an inner barrel and mock suppressor that only extends the overall length of the gun about 1 3/4" which is acceptable to me And kinesis, I cleaned the barrel before the reinstall and it actually took a few patches earlier it came out clean, so that was needed as well
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B3H1NDu Regular Member
Registered:1469163856
Posts: 229

Posted 1538446329	Answer with quote #6

Good that you figured it out. Was going to add that undervoluming wouldn't have been expected with merely a 247mm barrel anyway. If having unused potential in your gun drives you crazy, and then I've got no idea how you use .28g bulletin board system just. I'd bump it up to at to the lowest degree .three, .32g. You'll see a significant increase in range and accurateness.
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sheywood Inferior Fellow member
Registered:1534212571
Posts: 26

Posted 1538452928	Answer with quote #vii

Interesting. I accept a bottle of .32s. Will give them a try
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sheywood Inferior Member
Registered:1534212571
Posts: 26

Posted 1538957007	Reply with quote #8

Chrono'd at the field today. Chrono showed 1.41 Joules using .28g BBs Using this Joules to FPS Reckoner I get one.41J @ .28g = 330 FPS Assuming in that location is no Joule creep going from .20g to .28g BBs, and the chrono would show 1.41J for .20g BB's I rerun the numbers to become the following ane.41J @ .20g = 390 FPS So ~390 FPS. Pretty good and about what I was hoping to come across when all was said and done And a picture show below
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