100 Grain Vs 125 Grain Broadheads For Deer: Choose The Right Broadhead




Are you looking to understand the nuances of deer hunting? One crucial factor to consider is the choice of broadheads.

In this article, I will delve into the comparison between 100 grains and 125 grains of broadhead for deer hunting. What makes them different? Different froadhead have other performance and effectiveness. Both of them significantly affect arrow flight and penetration. So, What are the key differences between 100 Grain Vs 125 Grain Broadheads For Deer?

100 Grain Vs 125 Grain Broadheads For Deer


100-grain broadheads are lighter and faster, while 125-grain broadheads lead to more kinetic energy and better penetration. A 100-grain broadhead is used in target shooting and small game hunting, and a 125-grain head is used for large game hunting. So,125 grain is effective for deer hunting.

This is everything that you need to know. This is only a partial picture. So, Let’s go deep-

What Is The Feature Of Deer Hunting Arrows?

Deer hunting arrows have several features which are essential for hunting. Here are the features:

What Is The Feature Of Deer Hunting Arrows

Correct Spine Stiffness

An arrow’s spine stiffness is crucial. Accuracy and proper arrow flight are guaranteed. It’s critical to match the appropriate arrow spine to your bow setup. 

An arrow that isn’t stiff enough can make tuning difficult and affect the accuracy of broadhead shooting. To determine which is the best fit for your particular rig, ask a pro shop.

Arrow Length

The length of the arrow for deer hunting should be appropriate for your bow. An arrow that is too long or too short can affect the bow’s performance. 

An appropriate arrow length for your bow should be 1 to 2 inches longer than your draw length.

For example, If your draw length is 28 inches, then your arrow length should be 29 to 30 inches.

So, Which is the best arrow for a 125-grain broadhead?

A heavier head arrow will penetrate more effectively, be quieter, and use less energy from your bow. I shoot 70 pounds—490-grain arrows featuring a 50-grain outsert and a 125-grain broadhead. Use a heavier arrow with a 50 or 75-grain brass insert.

Arrow Weight

The weight of the arrow can influence its speed and penetration. Lighter arrows tend to be faster. So, how much does a 100 grain broadhead weight?

A 100-grain broadhead is equivalent to approximately 6.5 grams. This weight can affect the arrow’s speed, kinetic energy, and penetration.

On the other hand,

Heavier arrows offer better momentum and penetration. Deep-penetration arrows with good momentum are helpful. They guarantee successful shots at deer.

Bow Specifics

Recognize the type of bow you have, its poundage, the length of the arrows, the brace height, and the rig speed. These factors influence arrow selection. 

Overspun or underspun arrows can impact the accuracy of broadheads and tuning.


Success in the field is correlated with tight arrow groups at the range. For bowhunters, consistently accurate arrows are a must.


Many deer hunters prefer carbon arrows for their ability to penetrate tougher material, making them ideal for the deer hunting game.

Remember, I advised you to visit a qualified pro shop to find the best arrow for deer hunting with your specific bow.

So, do you think it is best for deer hunting? 100 or 125 grain broadhead for deer?

For most bowhunters, 

There are better options than 100-grain broadheads. For hunting, heads weighing 125 grains or slightly more are superior to 100-grain broadheads in almost every aspect.

So, what about 100 grain vs 125 grain broadheads for elk?

Yes! 125-grain broadheads are the best for elk hunting because they have better forward-of-center (FOC), penetration, and momentum. They manage the robust anatomy of elk quite well. Choose them for successful, morally sound kills.

What Are The Different Types Of Deer Broadhead?

Broadhead is the most debated topic among the archers for deer hunting. I have changed my deer broadhead every year for the past ten years. I have used different types of broadheads. From my observation, here are the broadhead for deer hunters:

What Are The Different Types Of Deer Broadhead

Fixed Blade Broadhead

Fixed blade broadheads are more reliable and more durable. The benefit of this broadhead is that they don’t depend on any moving part. They can kill more animals without repair and are more adept at forcing their way through bones.

But Are there any disadvantages? 

Yes, it typically occurs in minor cuts and reduced flight. These types of broadhead are frequently the preferred option for generalist hunters who need a broadhead that can penetrate ribs, elks, and breastplates as well as deer and turkey.

Mechanical Broadhead

A Mechanical broadhead is commonly used for creating wound channels. These types of broadheads are superior in flight.

So, what are the benefits of using these broadheads?

Using mechanical broadheads has the advantage that they typically create larger entry and exit holes. These require little to no tuning and inflict more internal harm on the animal.

Are there any drawbacks?

Yes, they may not deploy in an animal, or they may open in your quiver or during flight. These also reduce durability and have increased drag. These types of broadheads are a choice for hunters who want easy-to-follow blood trails and are confident they can avoid a deer’s shoulder.

Removable Blades

The ferrule on this broadhead allows the blades to be changed. If the damage is limited to the blades, there’s no need to throw away the entire broadhead.

So, Which will you choose for deer hunting? What is the best grain broadhead for deer?

To be honest, if you can shoot accurately, any broadhead will kill a deer. However, it is unlikely that a large, massive buck will survive an arrow through both the heart and lungs.

There are tradeoffs with whatever choice you make between 100 grains and 125 grains, mechanical and a fixed blade, and two or three blades.

You can think about 2 blades and 3 Blade Broadheads.

Broadheads with two blades are known to penetrate more deeply. Three blades produce better blood trails. On which is easier to sharpen, opinions differ. 

Remember to choose the broadhead that is right for your specific bow setup and hunting style.

Difference Between 100 Grain Vs 125 Grain Broadheads For Deer Hunting

Typically, a 100-grain broadhead is suitable for accuracy and stable arrow flight. It is the common choice among the archers for its available options.

On the other hand,

A 125-grain broadhead offers more kinetic energy and momentum, which leads to the effective killing of the animal. It is commonly used in large-game hunting.

100 Grain Vs 125 Grain Broadheads For Deer

Both of them affect arrow speeds. You can think about which you should choose among 100 vs 125 grain broadheads.


A 100-grain broadhead provides faster arrow speed compared to a 125-grain broadhead. The increase in weight may slightly reduce the arrow’s velocity.


If you want to target shooting or small game hunting, it will be better to choose a 100 grain broadhead. For large game hunting, like deer hunting, you may select a 125 grain broadhead.

Always keep in mind your intended purpose in selecting the right grain broadhead.

Here are the critical differences between 100-grain and 125-grain broadheads:

Parameters125-grain broadhead100-grain broadhead
Weight8.1 grams6.5 grams
Used for Pass through shot and for larger gameFor long-distance shooting and small-game
Trajectory and penetrationArc trajectory and better arrow  penetrationFlatter trajectory and less arrow penetration
Speed and EnergyLower speed and higher kinetic energyHigher speed but lower kinetic energy

The choice between them ultimately depends on the specific hunting situation, personal preferences, and the equipment being used.

How Do I Know Which Is Right For You?

Many factors influence the choice between 125- and 100-grain broadheads. Let’s analyze it:

Take into account the size of the game before beginning a hunt. You can hunt deer and other small game with a 100-grain broadhead.

But what about the bigger broadhead?

A 125-grain broadhead is appropriate for hunting elk and moose, among other larger game. More stopping power and improved penetration are provided by a heavier broadhead.

How Do I Know Which Is Right For You

Arrow Speed: The speed of the arrow is increased with a 100-grain broadhead. Thus, it will be a better option for you if you need to maintain a faster trajectory and higher arrow speed.

Penetration: Because of its larger weight, a heavier grain broadhead—such as one containing 125 grains—offers more kinetic energy and momentum, which improves penetration.

For humane and effective kills, or harder games in particular, go for the heavier options to ensure deep penetration.

Bow Setup: Consider your bow setup and find out which broadhead weights work best for your specific bow. Examine the guidance that your bow’s manufacturer has provided.

Target Size: If you frequently aim for longer-distance shots, the 100-grain broadhead’s flatter trajectory might be useful. Even at close range, the 125-grain broadhead maintains its accuracy.

So, What is the best size broadhead for deer?

Experts in the field advise using 100-gram broadheads for carbon and lightweight aluminum shafts and 125-gram heads for heavy arrows aluminum shafts.

100 Grain Vs 125 Grain Broadheads For Deer Hunting: Accuracy

Accuracy is essential when comparing broad heads made of 100 and 125 grains for deer hunting. Let’s examine the factors that affect accuracy for each:

Accuracy Of Broadheads with 100 Grains

Because 100-grain broadheads are lighter, their trajectory tends to be flatter. More accuracy can be achieved with this flatter trajectory, particularly on longer shots.

Targeting: The 100-grain option might work for you if accuracy is important to you and you feel comfortable placing your shots.

So, Should I use a 100 or 125 grain broadhead?

Most hunters nowadays use 100-grain heads due to the wide variety of options available from multiple manufacturers. With a 100-grain broadhead, you will always have the most options for shooting either a mechanical or fixed-blade broadhead.

Accuracy Of 125-Grain Broadheads

Although 125-grain broadheads are a little heavier, they still offer good accuracy. Practice will help you compensate for the slight arc in their trajectory. 

Penetration: The extra weight of 125 grains improves penetration. Accuracy is most important when the broadhead reaches the target.

So, what is the key differences difference between 100 and 125 grain broadheads?

For 100-grain: Lighter, faster arrow speed, but may lack penetration. 

For 125-grain: Heavier, better penetration, more momentum for elk hunting


What Is The Best Size Broadhead For Deer?

The best size broadhead for deer hunting is typically between 1 to 3 inches in diameter. The choice also depends on your personal preferences.

Do Heavier Broadheads Penetrate Better?

Yes, a heavier broadhead penetrates better than other broadheads. Because a heavier broadhead produces more kinetic energy than other broadheads, it penetrates armor and bone and hides better than other lightweight broadheads.

Are There Advantages To Using 125-Grain Broadheads For Deer Hunting?

There are significant advantages to using 125-grain broadheads for deer hunting. These grain broadheads provide great penetration, greater accuracy, and more kinetic energy.

Final Words

In the end, both the 100-grain broadhead and 125-grain broadhead play a crucial role in archery. A lighter broadhead leads to faster arrow speed and is suitable for target practice shooting. A 125-grain broadhead is heavier in weight and offers more kinetic energy for better penetration. So, Which should be chosen between 100 Grain Vs 125 Grain Broadheads For Deer?

If you want to go hunting large game like deer, then choose a 125-grain broadhead. Every broadhead can kill deer with a proper shot. The choice may also vary from man to man depending on their personal preferences and shooting style.

Bob Magic

Written by

Bob Magic

Meet Bob Magic, the archery maestro. A National Champion, “Coach of the Year,” and gold medalist. Bob simplifies archery, ensuring your bullseye success. Whether you’re a newbie or a pro, let Bob’s magic guide your arrow.

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