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Old June 10th, 2010, 10:08   #1
sewktbk
 
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BB's What weight?

What weight is good? I hear it depends on the gun. But how so?

What will a .30 BB do that a .20 does not, and vice versa?

What does it affect? Velocity? precision?

AEG Vs GBB? pistol Vs rifle?

please help,
thanks,

cheers.
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Old June 10th, 2010, 11:41   #2
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A heavier BB will carry it's energy longer, and is less susceptable to disruption. The result of using a heavier round will generally be an overall decrease in the distance your BB goes, but you well get an increase in the accurate distance.

What I mean is that a 0.20 may range 150ft, but you'll only have a reasonable degree of accuracy out to 80ft. A 0.28 will cut the total range down to maybe 120ft, but you'll be able to reliably hit stuff out to 100ft. Note that these numbers are arbitrary and I just chose them to illustrate my point/.

Having said that, your gun has to be able to put the energy behind a heavier shot. A stock TM gun performs worse overall on 0.28's than it does on 0.25's. As far as I'm concerned though if you're playing out doors and the gun is shooting 300 FPS or more, use 0.25 or heavier (I use 0.28 in all my guns).

Heavier rounds also penetrate brush a lot better and are less likely to be deflected by blades of grass.
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Old June 10th, 2010, 11:51   #3
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perfect input, thats exactly the info i was looking for.
Cheers and thanks a bunch for that Kaldaren, cyber high-fives all day.
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Old June 10th, 2010, 11:53   #4
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.20's are useless for anything other than chroning. .25's &.28's are usually what people run in AEG's .30's Are used in Sniper rifles and GBB Pistols for me anyway. Anything heavier then .30's are usually used for sniper rifles. heavier weight will go farther but not as fast. .20 wont go through brush very easy where as a .28 will.

Hope that helps.
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Old June 10th, 2010, 12:11   #5
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.28s make a good all around choice IMO. Pistol and AEG.
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Old June 10th, 2010, 13:00   #6
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thanks to you all, this brings me new knowledge and confirms what i thought.

cheers.
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Old June 11th, 2010, 13:20   #7
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Quote:
Originally Posted by Spawn28 View Post
.20's are useless for anything other than chroning. .25's &.28's are usually what people run in AEG's .30's Are used in Sniper rifles and GBB Pistols for me anyway. Anything heavier then .30's are usually used for sniper rifles. heavier weight will go farther but not as fast. .20 wont go through brush very easy where as a .28 will.

Hope that helps.
Not quite true. In CQB I prefer .20's over heaver (especially when I'm on the wrong end of them). The same with grenades. Of course I don't use anything lighter then .25's in the brush.
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Old June 11th, 2010, 19:50   #8
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I had the chance to use .25's and .28's and I say for outdoor I would take the .28's any day. They fly truer and increase effective range (but decrease total range). For the velocity hit that you take (heavier objects move slower when momentum is the same) it's still a pretty good tradeoff IMO.

Assuming 400 FPS on .20's (~1.49 Joules) you will get:

360 on .25's (still 1.49 Joules)
340 on .28's (still 1.49 Joules)

Still a decent velocity and the BB still gets to the target in time.

Now lets say you have a 330 FPS setup for one reason or another (lets say you're running a GBB as a primary).

330 on .20's is about 1 Joule:

295 on .25's (still 1 Joule)
280 on .28's (still 1 Joule)

At 280 it's still a decent speed and because of the extended effective range you still come out winning with heavier BB's. That being said however you'll need to lead your shots and predict where your target will go as you have a greater time variance before the BB reaches the target than if you were shooting 295 or even 330.

In CQB situations though I would not recommend heavy BB's .20's are fine for that (since they move slower so you're not being hit by 1J or even 1.13J objects flying at you). As for low powered rifles (ie. 300-330 FPS (exclusive)), .25's or less is probably best (this is my opinion however, you can experiment and see what's right for you).

NOTE: If you use the Arnies Airsoft, airsoft calculator they list effective range however that is incorrect. It should be maximum range not effective range. Effective range is the point where you can predict your shot trajectory before the BB goes off in a weird direction (ie. veering off to the left, right, down, or even up due to hop up). Maximum range is where you can shoot straight and distance the BB goes before it hits the ground and loses all velocity.

Just some things to think about.
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Old June 11th, 2010, 19:54   #9
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Quote:
Originally Posted by Kuro_Neko View Post
Not quite true. In CQB I prefer .20's over heaver (especially when I'm on the wrong end of them). The same with grenades. Of course I don't use anything lighter then .25's in the brush.
same except i use .12's in my grenades 12500 for 40$ vs 35$ for 4000 lol does the same thing really
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Old June 12th, 2010, 08:37   #10
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Originally Posted by Bigman View Post
same except i use .12's in my grenades 12500 for 40$ vs 35$ for 4000 lol does the same thing really
damn you pay alot for bb's .28's in toronto cost only $25.
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