What Spine Arrow For 70 Pound Bow? [Know Everything]

Author:

Published:

Updated:

Key Takeaways

  • Spine arrow for a 70-pound bow depends on arrow length, arrow weight, point weight, fletching, nock type, and your using types of broadheads.
  • Arrow weight, arrow length, and point weight are essential to determine the arrow spine. Use a gold tip spine chart to determine the correct arrow spine.
  • An over-spined arrow and an under-spined arrow may lead to a too stiff and weak arrow spine for your bow’s draw weight. Therefore, these can lead to poor accuracy and damage your bow or arrow.

There are many factors to determine the arrow spine for a 70 pound bow.Arrow’s spine may be different based on your personal preference, skill, and shooting style.

Point weight, draw weight, and arrow length are essential factors to select the arrow spine. So a common question arises: What spine arrow for 70 pound bow?

What Spine Arrow For 70 Pound Bow

 Spine Arrow For 70 Pound Bow :-

In general, the spine arrow for a 70 pound compound bow ranges between 300 to 400 spine for carbon arrows and 2117 to 2315 spine for aluminum arrows. Based on the point weight and your bow’s draw weight the spine rating can be different.

To get the proper arrow spine for a 70 pound bow, use an arrow spine chart. To know the determination method of the arrow spine, read this article.

What Spine Arrow For 70 Pound Bow?

The spine refers to the flexibility of the arrow shaft. Spine rating refers to the measurement of the stiffness of an arrow. Typically, the low ranges of the arrow spine indicate the arrow is stiffer.

 For a 70-pound bow, you’d generally want arrows with a spine stiffness that matches the bow draw weight. For a 70-pound bow, the spine ranges between 300 to 400 whereas spine arrow for a 60 pound bow is 400 with a 100-grain shot. To know the spine quickly, you can use an arrow spine chart. Here is the arrow spine chart according to Black Eagle Arrows:

What Spine Arrow For 70 Pound Bow

However, it is always a good idea to consult with an expert or use the arrow spine chart.

Factors Influencing The Selection Of Spine Arrows For A 70 Pound Bow

Factors Influencing The Selection Of Spine Arrows For A 70 Pound Bow

To select the spine arrows for a bow with a 70-pound draw weight, some factors are given below:

Factors Influencing For 70 Pound Bow

  • Spine Stiffness 
  • Arrow Length
  • Arrow Weight
  • Material
  • Fletching
  • Types Of Broadhead
  • Budget
  • Arrow Nock Type

Spine Stiffness

Arrows having a stiffer spine will be able to withstand the higher force when shot from a bow with a 70-pound draw weight.

More accuracy may result from shorter arrows since they may be more flexible. 

Poor accuracy and safety may result from arrows that are overly stiff and too short.

Arrow Length

Your draw length should match the length of the arrow. Inaccuracy can be caused by arrows that are too long or too short.

Arrow Weight

A heavier arrow might go through more readily, but you’ll need to locate an ideal balanced arrow. Have you ever wondered how an arrow kills an animal? It attacks the major organ of the animals and injures it.

Material

Materials that can be used to make arrows include carbon, aluminum, or both together. The more well-known qualities of carbon arrows are their speed, uniformity, and longevity.

Fletching

The size and shape of the fletching can impact arrow flight. For higher draw weight, you should choose a stiffer fletching.

Types Of Broadhead

There are many types of broadhead. If you want to use it for hunting, make sure the arrows are compatible with the kind of broadhead you prefer.

Some of them work better with specific arrow shaft material.

Budget

Consider your budget. 

Arrow Nock Type

Ensure that your arrows have the correct type of nock that fits your bowstring and shooting style.

How Can You Determine The Ideal Arrow Spine For Your 70 Pound Bow?

Don’t forget that arrow length is measured from the nock’s throat to the insert’s end. If you want to use a longer broadhead than your field point, then you can choose a slightly stiffer shaft.

Remember: *Point weight = weight = the entire weight of the insert, the point, the ballistic collar, and the FACT weight together.

  • Step-1: Determine your point weight and draw weight in the chart.
  • Step 2:Determine the arrow length by measuring from the nock’s throat to the insert’s end.
  • Step 3:Locate the appropriate group number on the shaft selection chart.
  • Step 4:Choose the spine that is right for your bow, then use the detailed arrow specs chart to find out what shafts are compatible with your spine.

Arrow length is measured from the nock’s throat to the insert’s end.

If you want to use a longer broadhead than your field point, then you can choose a slightly stiffer shaft. A query also comes up: what grain arrow for a 50 pound recurve ? Normally a 350 grain arrow is the minimum weight recommended for a 70 lbs compound bow.

How Does The Arrow Spine Impact Performance With A 70-Pound Bow?

The arrow spine is a crucial factor in archery. For better arrow flight and accuracy, the arrow spine must match the draw weight and draw length of the bow. 

How Does The Arrow Spine Impact Performance With A 70-Pound Bow

Over-Spine Arrows

If the arrow spine is as well, the arrow stiffens up to the draw weight of the bow.

Arrows with excessive spines can fly less accurately, cause erratic flight, and even break the bow or arrow.

Under-Spine Arrows

If the arrow spine is too weak for the draw weight of the bow, severe arrow flex may occur.

However, what happens if your arrows are too lightly or heavily spined for your bow?Arrows that are not properly supported might cause issues with accuracy and energy transmission to the target. 

Correctly Spine Arrows

The correct spine arrow with a 70-pound bow will flex the right amount during the release and subsequent acceleration. 

The ideal flex helps the arrow stabilize quickly in flight. This can lead to improved accuracy and overall performance. 

However, how to tell which way your arrow spins? The inaccurate  spins and arrow spine can lead to poor accuracy, reduce energy transfer, and damage the bow or arrow.

The recommended arrow spine is determined by various factors, such as the bow’s draw weight, arrow length, and point weight of the arrow.

Here is a rough guideline for a 70-pound compound bow with a standard draw length :

Carbon Arrows

Carbon arrows are the most popular to use. It has a spine rating such as 300,340,400, etc.

For a 70-pound compound bow, you can start with arrows in the range of 300 to 400 spine.

Aluminum Arrows

Aluminum arrows also have different spine ratings, such as 2117,2216,2315, etc. For a 70-pound bow, aluminum arrows are in the range of 2117 to 2315 spine.

Specific Brands Or Models Known For Excelling With 70 Pound Bows

Several specific brands produce high-quality bows for various draw weights, including 70 pounds.

Specific Brands Or Models Known For Excelling With 70 Pound Bows

Here are some well-known archery brands to consider for poundage bows:

  • Mathews Archery: It is a popular choice among archers for its precision-engineered bows.
  • Hoyt Archery: Reputed for producing high-performance bows suitable for different draw weights.
  • Bowtech: It offers a range of bows catering to different skill levels and draw weights.
  • PSE archery: Precision Shooting Equipment(PSE) is reputed for producing a variety of bows with different draw weights.
  • Elite archery: This brand is known for its accuracy and performance. 

Remember that it is challenging to select an arrow spine depending on the draw weight.

However, above are some specific brands known for excelling with a 70-pound bow.

Testing Arrow Spine Compatibility With A 70-Pound Bow

Compatibility With 70 Pound Bow

  • Determine Arrows
  • Bare-Shaft Test
  • Paper Tuning
  • Chronograph Test
  • Broadhead Test
  • Fine Tuning 
  • Range Test

Determine Arrows

Choose a set of arrows with a spine stiffness rating suitable for a 70 pound bow.

Check the above chart or the manufacturer’s spine chart for your guidance. 

Bare-Shaft Test

Shoot an arrow without fletching at a target. Observe the arrow flight and adjust it if needed.

Paper Tuning

Shoot closely through the paper. Examine the paper’s tear. A clean hole indicates the correct arrow spine.

Chronograph Test

Find the arrow speed by using a chronograph. Make sure it is inside your bow’s ideal range.

A weaker spine arrow or too stiff an arrow can lead to poor accuracy and speed. 

Broadhead Test

If you intend to use broadheads, test with the arrows.

Fine Tuning 

Once you have done the above test, then make adjustments if needed.

Range Test

To ensure consistent and accurate arrow flight, shoot arrows at different distances.

Remember to make adjustments for all the above tests.

Key Considerations When Choosing A Spine Arrow For A 70 Pound Bow

Choosing a spine arrow for a 70 pound compound bow is crucial for optimal performance and accuracy. Here are some key considerations:

Key Considerations When Choosing A Spine Arrow For A 70 Pound Bow
  • Ensure the arrow’s spine is  matching with the bow’s draw weight for your 70 pound compound bow.
  • A 70-pound compound bow is a higher draw weight. Make sure you have taken a stiffer spine, such as 300 or 350.
  • Point weight is an essential factor in the arrow spine. A heavier arrow point generally requires a stiffer arrow shaft.
  • Choose an arrow made from durable material such as carbon or aluminium for better performance. 
  • The length of the arrow can affect its spine. The size  should be a 2 inch longer arrow compared to your bow’s draw weight.
  • Dynamic spine takes into account the archer’s draw length and the bow’s speed. Some arrow manufacturers provide dynamic spine charts, using them for more accurate recommendations based on your specific arrow setup.
  • Consider your budget and your shooting style. High-end carbon arrows may offer better consistency but can be more expensive. 
  • If you are a beginner, consult with experienced archers or an archery pro shop.

In summary, the right arrow for a 70 pound compound bow depends on various factors. Some experiments and practical’s may be required to find the perfect match for your specific bow setup.

Frequently Asked Questions (FAQs)

Is 70 lbs Good For A Bow?

The draw weight of a 70 lb bow will vary depending on the shooter’s strength, personal preference, and shooting intention.

What Is The Best Arrow For A 70-Pound Bow?

The ideal grain for a 70-pound compound bow is 350 grains.

How Hard Is It To Pull A 70-Pound Bow?

Novice archers may find it difficult to pull a 70-pound compound bow, while experienced archers may find it doable.

How Much Does A 70-Pound Bow Arrow Weight?

For a 70-compound bow, a hunting arrow may weigh between 350 and 450 grains.

Conclusions 

The arrow spine is a very significant factor in archery. Performance, accuracy, and consistency can be enhanced with the proper arrow spine.

Hope, you never ask anyone about what Spine Arrow For 70 Pound Bow? The bow’s tip weight, draw weight, and arrow length are important considerations for choosing the spine of the arrow. Arrow spine often ranges between the 300–400 range for a 70–pound compound bow.

However, these don’t match the arrow spine exactly. To choose the appropriate arrow spine, consult a knowledgeable archer and use an arrow spine chart.

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.

Leave a Reply

Your email address will not be published. Required fields are marked *

Latest posts

  • When Is Bow And Arrow Hunting Season? [Each American State]

    When Is Bow And Arrow Hunting Season? [Each American State]

    A few days ago, some of my friends and I planned to hunt with a bow and arrow. All of them were beginners in archery, and only I was experienced in hunting. When I asked them about hunting season with bow and arrow, none of them had any idea about it. So, they asked me,…

  • Where To Hit A Deer With An Arrow? [Effective Shot Placement]

    Where To Hit A Deer With An Arrow? [Effective Shot Placement]

    When I was 13, my friend Jack and I took a course about hunting with a bow and an arrow. Our archery master was a man who always inspired us to show respect to the animals of the ecosystem. One day, Jack and I were planning to hunt deer, so we asked our archery master…

  • How Many Arrows Should I Take Hunting? [Right Ratio]

    How Many Arrows Should I Take Hunting? [Right Ratio]

    Suddenly, my friend Henry called him at his home a few days ago. I didn’t know the reason to call me. When I reached his house, he took me to his room and told me he wanted to hunt with bows and arrows. He didn’t know how many arrows would suit him to hunt successfully.…