How Tight Should They Be?
#1
Posted 07 September 2008 - 07:26 AM
Now for my real question. How tight do I want my darts in their barrel? I am using a Maxshot and will soon upgrade to a ETRL pump action shotgun. My stefans are tight in cpvc. While I do not have to twist them in, I can NOT blow them down the barrel what-so-ever. In 17/32nds brass the fit is similar to cpvc but a bit looser. In PETG my darts are very loose. They are about as loose as can be without sliding up and down. I can NOT slide the darts by shaking the PETG though. I am using a CPVC coupler on my maxshot as of now, with 9'' of CPVC. My question to you guys is "What type of barrel set-up should I use in my high powered springers? I can never really get a straight answer. Because I have never warred with anyone besides my inexperienced friends I am unsure of which barrel set up will give me the best range/accuracy. Also I am using both C_S style felt and washer stefans along with 3 copper bb stefans. Please help me put an end to this on going question in my head.
Thanks,
Jack
#2
Posted 07 September 2008 - 07:32 AM
Hope that helped
-NB
Do me a favor, take a deep breath, and get some of that sand out of your vagina.
WARNING - I'M BRUTALLY SEXY
#3
Posted 07 September 2008 - 07:44 AM
Hope this helps.
It's just screaming to be rearloading...
I seen a movie about that once.
#4
Posted 07 September 2008 - 07:47 AM
You took the turret off my old maxshot? Oh well. I would strongly reccomend a nested brass barrel of 3 inches of 17/32 nested into 9 inches of 9/16, all nested in PVC, and jammed into a coupler. I tried this, and I have very similar fitting darts to you (tight in CPVC, and loose in OMC petg)
Hope this helps.
Sorry, but yes I did take the turret off of the maxshot. It got to be a pain, and its range was only OK. Thanks for the advice about the barrel set up. And the maxshot is still holding strong.
#5
Posted 07 September 2008 - 07:49 AM
"We are here to have fun with the toys we love in a civilized and friendly manner."- Talio
#6
Posted 07 September 2008 - 08:33 AM
Z4: Why would you use a looser material for air guns? They generally like tighter barrels. Nat, you should never have to twist the darts into the barrel, especially for a springer.
Edited by Splitlip, 07 September 2008 - 08:34 AM.
#7
Posted 07 September 2008 - 09:35 AM
@ SplitLip You use a less tight barrel material because most of them release their air in a pop except for the titan and LBB. Spring powered blasters need tighter barrels because they need to build up pressure.
#8
Posted 07 September 2008 - 06:53 PM
"We are here to have fun with the toys we love in a civilized and friendly manner."- Talio
#9
Posted 07 September 2008 - 08:08 PM
I believe it was Forsaken_angel who said: Just tight enough that they don't fall out when you point the barrel at the ground and shake. (or something like that)
#10
Posted 07 September 2008 - 09:33 PM
Edited by CaptainSlug, 07 September 2008 - 09:36 PM.
#11
Posted 07 September 2008 - 09:48 PM
Also I did some testing today with various stefans (including CTD's) and determined that barrel fit makes a very significant difference (duh). The darts that were TOO loose and would fall out quite easily when the barrel is pointed a little downward flew the farthest by a significant margin. They aren't practical for a war, but for just messing around with, they are quite fun.
I have concluded that the best dart fit for a high powered air blaster is:
Tight enough that the darts won't fall out when shaken and can comfortably be blown through the barrel.
I'm still looking for the magical fit for spring powered blasters.
#12
Posted 08 September 2008 - 03:07 AM
- barrels should be tight enough to hold the dart, but not so tight that you need to twist the dart in. Should vacuum load with a bit of resistance, not too easily.
- springers should have a tighter barrel than air guns.
However, if you make it too tight, it becomes detrimental to the gun's power. If the dart is too tight, there is too much friction between the barrel and dart and not enough pressure to move the dart out of the barrel. Shortening the barrel reduces accuracy, and wastes air pressure which would be used to further push the dart out of the barrel. Therefore, the key is to find the optimal barrel length and fit.
Air guns do not need barrels as tight as springers because the air is already pressurized once it reaches the dart - the barrels are there to guide the dart in a straight line for accuracy and to channel the air behind the dart.
Or something along those lines.
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