BB weights

babyjames

How's everyone hope ye all had good weekend I have a question , Does it matter what weight BB you use in your AEG or GBB say a .3 or .25 etc.:)

ED E

babyjames wrote: »

How's everyone hope ye all had good weekend I have a question , Does it matter what weight BB you use in your AEG or GBB say a .3 or .25 etc.:)

As standard most use .2s. Some like to use .25s in AEGs, less range, more accurate.

For snipers .25s or .28s are the norm. You could use .3s but they may drop the range that bit too much.

Masada

with a long-ish barrel you can use most BBs no probs, with shorter ones the BB tends to leave so quick that it wastes a lot of the energy that was behind it,. ive used .3s in an M15 with really good results.

Puding

just be aware of the weight to fps ratio in terms of the joule power level

Spitfire666

if its 1 joule with .2 bb that it will still be 1joule when you put a heavier bb in it.

ED E

Spitfire666 wrote: »

if its 1 joule with .2 bb that it will still be 1joule when you put a heavier bb in it.

I beleive he means that it could chrono in fps lower than the limit but chronos are usually set for .2s.

Puding

If someone uses for example .25 all the time and is firing at 325fps then that is <1j , there is some misunderstanding inregard to the 1j limit a large number of people simple the fps figure of 328 is what denotes a 1j output

Masada

there is actually a slight difference in energy produced depending on weights, ive not tested it myself though, KD knows a lot more about it but its only very slight from what i know.,

Puding

its already been posted on the forums
http://www.boards.ie/vbulletin/showpost.php?p=52639839&postcount=3

0.20 328fps ishh
0.25 290fps ishh
0.30 270fps ishh
0.40 230fps ishh

Spitfire666

what i ment was that if your gun shoots at 328 using .2's you get 1j. if you then put .3s in it, you will not be upping the joule rating of your gun so long as you dont try get your gun to shoot 328 with those 3g bbs

Beast ASI

AEG wise, 0.23g is the key weight for our power levels. Really isn't much point in anything above that.

Genghiz Cohen

To answer the question asked, which the rest of you should do more often, I use .23s when I can, .2s otherwise.

Masada

Genghiz Cohen wrote: »

To answer the question asked, which the rest of you should do more often, I use .23s when I can, .2s otherwise.

you can easily use .25s and still get the range (or near it) you get from .2s, benefit being they stay a bit mire straight.,

NakedDex

babyjames wrote: »

How's everyone hope ye all had good weekend I have a question , Does it matter what weight BB you use in your AEG or GBB say a .3 or .25 etc.:)

Genghiz Cohen wrote: »

To answer the question asked, which the rest of you should do more often, I use .23s when I can, .2s otherwise.

You'll find that's not answering the original question either.


The different weights mainly effect flight stability of the round. The heavier it is the more accuracy it will gain and less effected by wind it will be. However, the corollary to this is that the round will be slower and have less slightly range so you'd be advised to experiment with different ammo weights to see what suits you.
The three most commonly used ones are .2, .23 and .25g for 6mm and .45 and .48g for 8mm.
Generally, .2g is the standard. Many have adopted .23g due to the range drop being negligible for the fairly good accuracy and stability increase. .25g is popular with snipers, again for accuracy though some (including myself) use them in aeg's to good effect also.

I.A.S. Ltd.

Also Ill just point out that Tokyo Marui provides little bags of 0.25g bb's with all their AEG's as standard, so they obviously think its ok to use .25g bbs in a stock AEG.

babyjames

Cheers all for your help on this one. Just wanted to make sure they would not damage my AEG

Masada

nah they wont be any hassle, just make sure to use only decent quality BBs and defo not them .12 yellow ones that you can buy in pound shops.,

kevteljeur

Genghiz Cohen wrote: »

LMAO!

To the OP: I think it's all been covered quite well here by everyone else, but I think that for the drop in speed at close range that you get with a heavier bb, the speed and accuracy of the bb are maintained better by .25g bbs at longer ranges, you get a harder impact and you get cover penetration; people really notice those bbs coming through bushes.

I'm still using .2g because I have them but after they're finished I'm sticking with .25g.

kdouglas

Spitfire666 wrote: »

if its 1 joule with .2 bb that it will still be 1joule when you put a heavier bb in it.

Actually, some tests that I did recently showed that in gas pistols, heavier BBs can actually have a higher power (in Joules) than lighter ones. I'll be doing more testing on it soon though. The heavier BBs stay in the barrel longer, so more energy from the gas is transferred into the BB before it leaves the barrel.

Anyway, on-topic: There's a great article on arnie's where a guy did some testing with .20s and heavier BBs (.25 i think), the .25 actually had better range, but travelled slower, so the consensus was that under 70feet, you're better with .20s, at longer distances, you're better with .25s (or something to that effect anyway, i'll dig up the article later when I have time)

Stercus Accidit

vtec wrote: »

you can easily use .25s and still get the range (or near it) you get from .2s, benefit being they stay a bit mire straight.,

I agree completely, I used .2's and .25's in my rpk at the gathering, depending on hop settings, I barely noticed a drop in the .25 range, but the speed it reached that range was slower.

Generally OP, you want .2's .23's or .25's in an aeg for normal use, you'll find the lighter the bb, the less accuracy you get, but its faster in the air, at least initially.

kevteljeur

The article which Keith is referring to is:
http://www.airsoftretreat.com/features/articles/fpsweight/

And he originally bandied this link about (along with lots of other interesting scientific stuff) in this thread:
http://www.boards.ie/vbulletin/showthread.php?t=2055266840


In a nutshell, what matters is what mix of characteristics suite your playing style; and that .05g actually makes a remarkable difference (then again, it's a full 25% of the weight of the lighter bb - that's a lot.).

kdouglas

Thanks Kev

thejem

that sorts out my question about the sniper rifle, thanks for info lads

babyjames

looks like its.25 from now on then!!!!!:)

BrusBilis

After nearly 50000 rounds using 0.20gr in my AK (345 fps w/0.2), one day i was out of bbs and a friend let me 0.25bbs for continuing the game.

I saw that using 0.25 (now is 305 fps w/0.25) i have a very more effective range a bit more maximun range, a great straight flight and a good brush penetration.

I never have used 0.20 again.

Now i'm waiting for guarder 0.28 to see how they work.

Regards

kdouglas

BrusBilis wrote: »

After nearly 50000 rounds using 0.20gr in my AK (345 fps w/0.2), one day i was out of bbs and a friend let me 0.25bbs for continuing the game.

I saw that using 0.25 (now is 305 fps w/0.25) i have a very more effective range a bit more maximun range, a great straight flight and a good brush penetration.

I never have used 0.20 again.

Now i'm waiting for guarder 0.28 to see how they work.

Regards

I have a feeling you may not be from Ireland, however in Ireland and on this forum, there is a strict 1 Joule rule, that is 328fps with a 0.2g BB, discussion of anything above this is not allowed here.

Mweelrea

BrusBilis wrote: »

After nearly 50000 rounds using 0.20gr in my AK (345 fps w/0.2), one day i was out of bbs and a friend let me 0.25bbs for continuing the game.

I saw that using 0.25 (now is 305 fps w/0.25) i have a very more effective range a bit more maximun range, a great straight flight and a good brush penetration.

I never have used 0.20 again.

Now i'm waiting for guarder 0.28 to see how they work.

Regards

345fps is over the legal limit so its just as well you no longer use .20's

Spetzcong

305 with .25's is still over the limit, as has been said countless times before upping the weight of the projectile doesn't change the energy that it is shot at.

I'd suggest you get a new spring for your AK, it's hot atm.

BrusBilis

Sorry .I din't knew you had a 1 J limit about speaking too.

I'm from Spain.

Two friends of mine with VFC KH416 at 325 w/0.2 and CA G36C at 310 w/0.2 after seeing me using the 0.25 bb they begin to use them and now they are very convinced of their use.

I think between 0.8 J - 1 J use 0.25 improve the efficiency of the AEG

Stercus Accidit

Its ok, its just incase any one reading the forum thought you were in ireland where it is actually illegal to have an aeg over 328fps with .2g bb's


I agree, you do get much better brush penetration too with .25's, they deflect less easily off leaves etc.