Range question

[TokyoSeven]

Originally Posted by ThunderCactus

He should be using the springless UMP!

Never the less, epic pic is epic.

[CDN_Stalker]

Love it Cactus, love it!!! Hahaha

[danelen]

So thanks for all the replies but there seems to be no general agreement and what makes a gun get range and accuracy. This compression thing though makes sense to me. What do you have to do to make a gun have good compression? Also if there is a disagreement over if compression, or longer barrel, or FPS make a gun shoot further and more accurately. Then why not combined all into one gun? That seems like a pretty straight forward way to cover all the steps. I am buying an SR10 KWA. But if we can conclude that barrel length doesn't matter then I will buy a shorter gun.

[Sportco]

A stable airfoil generates less drag... that is a constant...

But what I was stating was that ((( it would seem improbable at best that ((for a specific setup)) meanning SAME GUN a shorter barrel would have the same precision long range then a short one... at equal exit velocity...

On that I stand by my statement...

As for another gun... my tm usp aep at 220 fps put my gbb to shame at 280fps ((range and precision)).

But for the same gun... I think same precision is unlikely

Cheers

Pete

Originally Posted by ThunderCactus

How do the dynamics of baseball pitching factor into to airsoft in any way shape or form?
Sportco, your arguement does make sense. However proper compression also includes laminar airflow through the barrel. A stock 290fps HFC beretta can outrange, and has more accuracy than a stock 310fps CA M16, even though the barrel on the M16 is significantly longer.
The hard PROVEN fact, through experience in the field with shorter and longer barreled guns, through actual field testing, not through idle speculation and theory, is that you can get the same range and accuracy out of a shorter barrel than you can out of a longer one.

Where's Stalker when you need him?

[Amos]

Lol the best thing for range and accuracy would be;

Long barrel with cylinder that's rated to the barrel
FPS matched to hop-up rubber
Excellent compression

But again -- My team's Realsword Type 56 with the 455mm barrels and 390 FPS spring shoot only about 10-15 feet shorter than my SVD with a 690 mm barrel and 450 FPS spring.

The reason? Compression. SVD uses proprietary parts so I wasn't able to install any Airsoft Research Syndicate parts ARS Cylinder heads combined with the ARS Piston heads is the BEST air-seal I've come across to date.

All guns are using the proper hop-up rubber/spacers...

Almost make me wanna get a Type 56 lol

[Skladfin]

Airsoft Trajectory Project, as hosted by BB Bastard. Mirrored on Airsoft mechanics

http://www.bbbastard.com/ATP/07-a-02.htm

BB Travel Distance with hop up using 0.25g BBs (Different velocities.)


0.37J = 180FPS w/ 0.25g : 110Feet
0.84J = 270FPS w/ 0.25g : 153Feet
1.49J = 360FPS w/ 0.25g : 185Feet
2.32J = 450FPS w/ 0.25g : 220Feet
3.35J = 540FPS w/ 0.25g : 250Feet

add about 40 FPS which is an approximate FPS with 0.20g BBs.

There is a CLEAR linear improvement in range as the FPS is increased in this test, and the only 3 controlled variables in this test are : FPS, BB weight, and hop up setting, other factors affecting the range was ENTIRELY external to the rifle. As shown in the project, they are:


Drag Force
Magnus Force
Terminal Velocity
Spin Decay
Drag Coefficient
Lift Coefficient
Gravity

Therefore, as far as your Gun have control: FPS + BB + Hop up setting = Range

[danelen]

Really good info, but no one has mentioned specific parts I need internally to guarantee good compression. I just want to know everything I should put and do to my sr10 to get good long, accurate shots.

[CDN_Stalker]

First thing to put into your gun would be 0.28g to 0.30g QUALITY BBs. Is the best and easiest upgrade for longer range accurate shots.

[danelen]

Ya Ok one more time, I have a discount code for from where I am buying... I want to buy everything right now. I want to make this really easy on myself by doing it all at once. So what upgrades do I need for my gun to get good compression, good accuracy, good distance anything.

[fleuryfighter]

tightbore barrel
hop-up
all internals
.28 bbs

[TokyoSeven]

Originally Posted by fleuryfighter

tightbore barrel
hop-up
all internals
.28 bbs

I dont believe full internal replacement is required.

Originally Posted by danelen

So what upgrades do I need for my gun to get good compression

That is unless you are dead set on changing something that works perfectly fine. I believe KWA stock compression components are sufficient.

[danelen]

Ok so I was thinking Hnub, tightbore barrel, for internals, maybe a better hop up. Anything else?

[TokyoSeven]

A unicorn, a tricycle, one of those Toy Story 3 Barbie dolls where she is dressed in clothes that has toy story three characters on it, and a bouncy castle since youre asking.

[HKGhost]

Easiest upgrades. Tight bore, SCS, Hop up bucking. Cheap and easy to install. After that, piston head, cylinder head and air nozzle with o-ring.

[danelen]

Actually is there anywhere that tells me what all these upgrades do for me? I Was reading that with the TBB that most need a cylinder type 0, not sure why but is this true? I wouldnt mind knowing what all these upgrades get me lol.