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, 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.
In this review, I tested the Cold Steel Cheap Shot broadhead.
It’s a real value price head that’s advertised primarily for small game because it’s made out of 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).
The Cheap Shot Broadhead Up Close
The Cheap Shot broadheads by Cold Steel cost about a buck each.
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.
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.
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.
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.