# Arrow Speed Calculator | FAST results!

Looking to get an estimate of your arrow speed based on your bowhunting setup? Try our arrow speed calculator below!

Arrow Speed Calculator
Bow Manufacturer IBO Speed
move slider or enter value
ft/sec
Draw Weight
move slider or enter value
lbs
Draw Length
move slider or enter value
inches
Arrow Weight
move slider or enter value
grains
Weight Added to String (20gr=peep only, 45gr=peep and tube)
move slider or enter value
grains
Estimated Arrow Speed:
/

Use the tool above to calculate the speed of your arrow!

When it comes to archery, IBO stands for International Bowhunters Organization.

## What is IBO Speed and how is it calculated?

You might have seen where compound bows have an IBO rating.

But, what does that really mean?

Well, the IBO speed of a bow is calculated using a bow with a draw weight of 70 lbs, a draw length of 30 inches, and an arrow weight of 5 grains per pound of draw weight. So, that would mean a 70-lb draw weight would be shooting an arrow that weighs 350 grains (70 x 5 = 350).

That arrow is then shot through that bow through a chronograph, which measures the arrow speed. The average speed becomes known as the IBO rating of that particular bow.

### The problem with IBO ratings

The problem with IBO ratings, however, is that they are not typical of most hunters’ setups.

For example, a 30-inch draw length is rather long for the average archer. Also, an arrow weight of 350 grains is simply not typical of most hunting setups. And, with high FOC arrows gaining popularity, the arrow’s grains per inch is often significantly greater.

So, when using the arrow speed calculator above, you must understand that the IBO rating you enter is based on this premise. The calculator will give you an estimate of how changing the inputs that make up IBO could affect your arrow speed.

The arrow speed calculator makes the following assumptions:

• Every inch of draw length under 30″ will subtract 10 ft per second from the IBO value.
• Every inch of draw length above 30″ will add 10 feet per second to the IBO value.
• Every 3 grains of total arrow weight above draw weight multiplied by 5, will subtract 1 foot per second from the IBO value.
• Every 3 grains of additional weight on the bow string will subtract 1 foot per second from the IBO value.

## Other Inputs for Arrow Speed Calculator

After you have entered your bow’s manufacturer rated IBO, enter the following information:

• The draw weight of your bow in pounds.
• The draw length of your bow in inches
• The arrow weight in grains (includes fletchings, wraps, inserts and also points/broadheads
• Total string accessory weights in grains (peep, tube, silencers, etc.). For your reference, an estimated peep only weight is 20 grains, and a peep + tube is 45 total grains.

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It’s a real value price head that’s advertised primarily for small game because it’s made out of plastic.

Plastic?

That’s right, plastic. So, obviously I was excited to test it!

I did not test the Cheap Shot head in all the ways that I normally test big game broadheads, because they market this as being a cheap head (hence the name, Cheap Shot).

That’s right, one dollar!

They say they’re for non-trophy animals. So, you wouldn’t want to shoot at a deer with these, but could try these on small game animals or maybe hogs.

Let’s see how it performed!

So here, you get a good look at the Cheap Shot. It’s a little over 3 inches in length. The cutting diameter is 1 and 5/16″, so just a little bit over one and a quarter inches. You can see the serrations that they have here, which is going to aid in its penetration and its edge retention. Since this head is plastic (they call it space-age polymer), it’s not going to have the edge retention that steel would, but you can make up for that with really good serrations.

## Cheap Shot Flight Testing

I tested the Cheap Shot head for flight. I shot two of the heads and one field point for comparison.

Here was the Cheap Shot from 40 yards. You can see where the field point hit near the center, but the two broadheads were not very close.

Since the flight test at 40 yards didn’t go too well, I moved in to 20 yards and shot them again…

They fared much better at 20 yards than they did at 40…

## Out-of-the-box sharpness Test

I tested (or attempted to test) the head’s sharpness, but I couldn’t get the head to cut the wire… that’s a first.

I couldn’t get the Cheap Shot to cut the wire on my sharpness tester, so no result to report here.

## Cardboard Penetration Test

I shot the Cheap Shot into layered cardboard to see how many layers it could penetrate.

In this test the Cheap Shot penetrated through 43 layers of cardboard.

## Ballistic Gel Test

I shot the Cheap Shot into FBI ballistic gel that was fronted with 2/3″ rubber matting and 1/2″ MDF.

The Cheap Shot penetrated 4-1/2 inches.

I know it looks like it penetrated 5 inches into the gel, but when lined up straight, it was actually only 4-1/2 inches.

## MDF Penetration Test

Next I shot the head into MDF. Check out the pictures below…

Here’s the head and the hole that it made in the MDF. It’s a decent size hole there.

As you can see, it broke off at the ferrule and left the threading portion of the ferrule inside my arrow. So I had to work a little bit to get that out.

Here you can see in this picture the distance that it penetrated through the MDF. It didn’t even make it all the way through but it did make it most of the way through.

So what do you think of the Cheap Shot?

I love the creativity and I like that Cold Steel is trying something different.

I also love the price point. I mean, they’re only one dollar for a head. I mean, if you are just starting out with bowhunting and just need a head to shoot smaller animals with, it’s an option. It will definitely work and wallop whatever you shoot it at.

But, I just kind of go, “Huh? Why?”

I mean, I’d much rather use an old broadhead or a field point with a judo point or something like that. I just think there are a lot better choices for small game.

But for something fun to try, yeah, I think it’s worth a look for that. So check out the scores. The score sheet is a little bit different because it’s not the typical kind of broadhead that I test. And also, check out my Lusk grade for it.

# How Long Are Deer Pregnant? | Gestation Calculator

Quickly find out the approximate conception or birthdate of whitetail, mule deer, elk and other types of deer species using the gestation calculator below!

gestation Calculator
Choose animal below and select “conception date” or “birth date” to calculate the corresponding birth or conception date.
choose animal

## Pregnancy Length of Deer

When it comes to whitetail and other types of deer, there are two time periods during the year that are particularly fascinating.

For hunters, the “rut” is certainly an important time, as males seek out females for breeding. During this time, the woods and hunting grounds are alive with activity and often provide a hunter the best opportunity at the buck of a lifetime.

And, while the conclusion of the rut often signals the end of hunting season for many, a different stage will soon begin. In the Spring and Summer months, does will begin birthing fawns that were conceived during the rut and a new part of the life cycle will begin.

If you frequent the woods during this time, you just might catch a peek at a small, spotted whitetail fawn. And, if you utilize trail cameras during the Summer months to keep tabs on your herd, a picture of a fawn is always a welcome surprise.

But, how long are deer pregnant, and how can you figure out when the fawns will start dropping in your area?

The spotted coat of a whitetail fawn is a beautiful thing to see. You have the best chance to see these young deer in May or June.

## Gestation period of Whitetail Deer

To determine the approximate conception date of a whitetail fawn or the estimated birth date, you have to first know the gestation period (how long the baby deer is in the womb between conception and birth.)

According to Mark K. Johnson, Professor at the School of Renewable Natural Resources at Louisiana State University, the gestation period for whitetail deer (Odocoileus virginianus) in the northern U.S. are similar to that of whitetail in the southern states, ranging from 193 to 205 days (Spring 2002 issue of Louisiana Agriculture).

Based on those statistics, whitetail does bred in early November would likely be born in mid-May to early June. So, female whitetail deer are pregnant for about 6 and a half months.

If you happen to have trail cameras out during the Summer months, you may catch a photo or video of a fawn with its mother. The unmistakable spots on young fawns is beautiful to see until they begin to fade 3 to 4 months after birth.

Let’s take a look at some of the other types of deer and the gestation periods of each.

## Mule Deer Gestation Period

According to a 2005 report published by the Natural Resources Conservation Service and the Wildlife Habitat Council, the gestation period of mule deer (Odocoileus hemionuslasts) an average of 200 days. So, the mule deer and whitetail have almost identical gestation periods.

The pregnancy length of a mule deer is almost identical to that of the whitetail. (photo by Jeff Coldwell)

## Elk Gestation Period

While the number of days that whitetail deer and mule deer are pregnant is very similar, the elk (Cervus canadensishas) a longer pregnancy.

According the Minnesota Elk Breeders Association, the average gestation period for elk is approximately 246 days. The “rut” time period for elk ranges from late August to late October with calves typically being born in May or June.

Bull elk have a gestation time of approximately 246 days.

## Blacktail Deer

According to the Oregon Department of Fish and Wildlife, the average gestation time for a black-tailed deer (Odocoileus hemionus columbianus), is approximately 203 days.

Blacktail deer pregnancies lasts approximately 203 days. (photo by John Carron)

## Chital (Axis) Deer

According to the Natural Science Research Lab at Texas Tech University, the gestation period for the Chital (Axis deer) ranges from 210-238 days.

Axis deer have a gestation range of 210-238 days.

## Moose

Moose (Alces alces) calves are born any time from mid-May to early June after a gestation period of about 230 days, according to the Alaska Department of Fish and Game.

Moose calves are typically born from Mid-May to early June.