BB's weight
 

First, yes i'm a noob, and YES my question may seem stupid but your internet site don't autorize me to make a new thread in the stupid question's center so i'm gonna write it down over here. ok, so I juste wanted to know whats is the best type of bb's... like, whats the différence between some heavy weighted bb's compared with some light weighted ones.

thanks

Heavier BBs fly slower but are more accurate because they're less sensitive to wind and such, lighter BBs fly faster but are less accurate for the opposite of above. Generally most AEG users shoot 0.20g or 0.25g, with about 20fps difference between the two ammo (actual numbers will vary depending on barrel and BB quality). There's also 0.23g BBs, but they're relatively rare in Canada.

On top of what The Saint said, I would recommend .25g minimum for outdoors (better wind resistance), and .20g is fine for indoors (reaches your target faster). There's also .23g and .28g if you want to fine-tune.
.30g is the max for most automatic rifles, and few people use them anyway, as they get expensive. Although the accuracy benefit is nice, if you're using a loud gun, people may just laugh at how slow the rounds fly out.
I'd recommend .30g and above for specialized pistols (they go great in a TM MK23 on propane) and sniper rifles.

As for brand names, everyone has a favourite. Stick to the popular brands and you'll do fine. There are some accuracy test bouncing around here and there if you google or search this site, but data is mostly inconclusive - although they do vary in accuracy, it's usually not by much.

Don't cheap out on no-name bb's. Cheap rounds can provide terrible performance (even if they are the correct weight) or worse, break in your gun.

Bought some really cheap BB's off of ebay, they had a pebbled surface to them like a gold ball (but not as regular, more like, well, really cheap BB's) and they would jam up any gun they where used in. No damange, just jam the magazine loading nozzle thing.

I just had my first airsoft game and learned first hand that 0.20g's are too light for outdoors.

I saw at Crappy Tire a bottle of Crosman BBs. I knew it was shit but decided to look at them. GOD ! one out of three BBs were already chipped , they weren't all round , nicely shaped...they were all chipped like they had hit a wall at 400 fps from close range !

GOD never buy those , NEVER !

I do. I use them in CQB sometimes when accuracy doesnt matter.
buy them, pour them only a shoot and quickly sort through them for defects.

I use the red ones in my lowcaps as the last 1-2 BBs so when the mag is empty I can tell.
breaking in a new spring, they are fine.
the bottels are great.
but dont field them.

the idea of putting the 2 last rounds a different color is really great.

the greens dont work well, but the red ones work like a charm.
though they dont count for shooting since the difference in weight from the other BBs(that your hopup is set to) just makes them go flying up.

but for my GBB, I add 1 red BB 1/2way down my mag, so I know when im at half, same with midcaps and lowcaps. dont wanna enter a firefight with only 10 rounds left.

Basically, If you are keeping your airsoft gun stalk, buy .20's. the end.

I came up with that last year, works awesome (where did Droc get the idea? ;) ) Droc tends to put the last 4 BBs in his Hi Capa mags as red, but puts more in his locaps for his AEGs. I usually put 8-12 red BBs in my MP5 locaps, then the rest 0.25g. Helps to know when the mag is running dry, but also cuts down on dry firing. If you put enough in, when you reload you can still keep a number of red 0.12g in it so you don't have to deal with two types of BBs.

One thing heavier BBs (0.25g) in AEGs that wasn't mentioned is for getting through brush easier. I've seen enough AEGs loaded with 0.20g (even upgraded ones) work hard and use a lot of ammo to try to get through even dead grass. Recall one time being shot at from an upgraded gun shooting 0.20g from a Star mag (game had just finished, but he didn't hear), he unloaded his 30rd mag at me from about 100ft away, I saw his BBs bouncing everwhere in between us because of the brush, only one came through and hit me in the arm. I called hit then told him the game had ended. Another time, I shot at my cousin Gunny, he was crawling under a cedar tree 40ft away, dead grass between him & myself, 350fps MP5, took me 1.5 locaps to get BBs through to make him call out.

My own experience is 0.20g are only useful indoors. Stock guns, they are made for 0.25g (TM anyways) so you gain an advantage from using them anyways. Don't get fooled into thinking an upgraded gun will make light BBs more effective, they really don't by much at all. Cheapest performance upgrade is a bit heavier BBs. Like HJ said, GBBs benefit greatly from heavier BBs (I shoot 0.30g in my KSC Glock 19s, get just over 100ft effectiveness).

This is definitely not true. Stop lying.

there is no pratical reason to use .20 over .25
overall performance is astoundingly better.

I'm using primarily 0.23g this season, here's to hoping it's as good as them folks across the pond claim.

Please note that it's not impossible to use .20 for this game. Just expect that there are drawbacks.
If your gun's hopup is decent and the distance you normally would shoot at are relatively short, they can serve you just fine.
Otherwise, I've had the best results with fairly normal AEG when using .25 ammo.

also for people to note, GBB hopup works best with .25s