What Airsoft BBs Should You Use?

What Airsoft BBs Should You Use?

If you’ve been to our shop, you’ve probably seen the variety of bb’s we carry. So, how do you know which bottle to pick up? 

Let’s review the options and find the one that is right for you.

Biodegradable vs. Non-Bio BBs

First of all, there are two main types of BBs: biodegradable and non-biodegradable. Typical plastic airsoft bb’s that are not biodegradable can create a field full of bb’s in no time. They’ll sit there for many years and are not great for the environment. Alternatively, Bio BBs can degrade a lot quicker than non-bio. It may take a few months, but the plastic will eventually break down. For this reason, many outdoor fields require that you use only biodegradable ammo.

Is there any acceptable time to use nonbio? 

Yes, and that’s when playing indoors. Bio airsoft bbs need moisture to degrade, and they won’t get that inside an indoor field. If you’re playing indoors, there’s nothing wrong with saving a couple bucks and using non-bio. However, if you’re playing at an outdoor field, it’s absolutely worth an extra couple of dollars to keep the environment clean.

Do Bio BBs Affect Performance?

A common question we get is whether bio bb’s affect performance. The answer is no, as long as you buy a quality brand. The difference between bio and non-bio is indistinguishable if you buy from our recommended brands. Some lower-quality brands of bio ammo create a powdery residue that can jam up your gun. Avoid this cheap ammo and use it to keep your gun clean and happy.

What weight airsoft ammo should I use?

Aside from choosing bio or non-bio, you must also pick the correct weight. There are options ranging from a lightweight .20g bb to a heavyweight .43 bbs. The right option for you will depend on the gun you’re using and the field you’re playing at.

If you’re playing at an indoor field, you can avoid using lighter BBs, as there’s no wind to mess with your shot. I’d suggest .20 g or .25g bbs for indoor play. If you’re playing outdoors, you’ll get much better range and accuracy if you use .25g, .28g bb’s, or even .32g bb’s. I prefer .28s for outdoor play with my AEGs. If you’re using a marksman rifle, you’ll want to use .28g or .32g bbs for more range and tighter groupings.

Lastly, you have .36g and .43g bb’s on the heavier end. These are ideal for bolt action sniper rifles, as you’ll want maximum wind resistance and accuracy. These heavier bb’s may not work as well in some AEGs unless they have a modified hop-up that can handle heavier rounds. Most AEGs are designed out of the box to work best with .20g bbs to .28g

Many other weights are available, but the ones I have listed are the most common.

 

Tracer BB's

The last type of bb’s you’ll see are tracer bb’s. These are designed to glow in the dark and typically come in either red or green. It’s important to note they don’t glow on their own very well; you’ll need a tracer unit with a UV light inside it. This essentially “charges” the tracer bbs and gives them a laser-like effect. I’d recommend these ASG tracers, which are available in red and green.

Check out all our bb's!

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Frequently Asked Questions

What is the difference between .12 and .20 airsoft BBs?

The primary difference between .12 and .20 airsoft BBs is their weight. .12 gram BBs are lighter and typically used in lower-powered airsoft guns, such as spring pistols and entry-level electric guns. They are less accurate at longer distances and more susceptible to being affected by wind and other external factors. On the other hand, .20 gram BBs are heavier, offering greater stability and accuracy. They are the standard weight for most airsoft guns, including higher-powered AEGs (Automatic Electric Guns) and gas-powered rifles, providing a good balance between range and accuracy.

What BB weight for what FPS?

The appropriate BB weight for a specific FPS (feet per second) depends on the power of the airsoft gun. For guns with lower FPS (under 250 FPS), .12 gram BBs might be suitable. For guns with FPS between 250 and 350, .20 gram BBs are typically recommended. For guns with FPS between 350 and 400, .25 gram BBs offer better accuracy and range. For high-powered guns (over 400 FPS), .28 gram BBs or heavier are often used to maintain accuracy and performance. It's essential to match the BB weight with the gun's FPS to optimize performance and ensure consistent shots.

Can you use 4.5 mm BBs in airsoft?

No, 4.5 mm BBs cannot be used in airsoft guns. Airsoft guns are designed to use 6 mm BBs, which are specifically made for this purpose. 4.5 mm BBs are typically steel or lead BBs used in airguns or BB guns, which operate at much higher pressures and velocities than airsoft guns. Using 4.5 mm BBs in an airsoft gun can cause damage to the gun and pose a safety risk to the user and others. Always use the correct 6 mm BBs for airsoft guns to ensure proper function and safety.

Does FPS drop with heavier BBs?

Yes, FPS (feet per second) does drop with heavier BBs. As the weight of the BB increases, the velocity at which it is fired decreases. This is due to the additional mass requiring more energy to accelerate to the same speed as a lighter BB. While heavier BBs may result in lower FPS, they often provide better accuracy, stability, and range. The kinetic energy (measured in joules) of the shot remains relatively consistent, but the trade-off is a reduction in speed.

Are BBs stronger than pellets?

BBs and pellets serve different purposes and have different characteristics. BBs, typically made of plastic for airsoft or steel for BB guns, are spherical and designed for recreational shooting and airsoft games. Pellets, usually made of lead or alloy, are used in airguns and have a more aerodynamic shape, such as a pointed or flat head, designed for accuracy and penetration in target shooting or small game hunting. In terms of impact strength and penetration, lead pellets are generally stronger and more effective than plastic BBs. Steel BBs used in BB guns are stronger than plastic airsoft BBs but still not as effective as pellets for precision and penetration.