FOC calculator header image

FOC Calculator | Easily find Front-Of-Center of your hunting arrows

If you already know the length and balancing point of your arrow, you can use the FOC Calculator below to quickly find the % of your arrow’s weight that is Front-Of-Center! (enter a number or slide the orange dots to the desired number)

FOC (Front Of Center) | Calculator
Arrow length from end of arrow shaft to the bottom of the nock groove (L)
inches
Distance from balance point to the bottom of the nock groove (A)
inches
FOC (Front Of Center):
0 %


You may have heard other bowhunters talk about the “FOC” of their hunting arrows. (Who knows, you may have even heard “The Ranch Fairy” ranting about high FOC).

But, what does “FOC” mean and how can you easily calculate it?



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What does FOC stand for?

“FOC” stands for Front-Of-Center (Or Forward-Of-Center) and refers to the percentage of an arrow’s overall weight that is forward of the balancing point, or, “center” of the arrow.




How to calculate FOC using a formula

You might like the FOC calculator but also want to learn how to calculate FOC using a formula.

The formula to calculate an arrow’s FOC is:

100 x (Balance Point measurement [A] – Arrow Length [L]) / 2.

To use this formula, you will first need to measure the arrow’s overall length as well as finding the balance point measurement.

foc equation graphic
Once you have found the arrow length (A) and balance point (B) measurements, use the formula above to find the FOC of your hunting arrow.

Finding the arrow’s length

To find your arrow’s length for the purposes of calculating FOC, you need to be sure you measure correctly.

Measure your arrow from the end of the arrow (where the broadhead/point screws in) to the bottom of the throat of the nock (see diagram above).

Once you have your arrow length measurement, you need to measure the balancing point…


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How to find the “balance point” of an arrow

To find the balance point of your hunting arrow, first be sure you have already installed your nocks, vanes, inserts and broadheads/points onto your arrow.

balance point FOC diagram
To calculate FOC, you first need to find the “balance point” of your hunting arrow.


Using a triangular block of wood, find the exact place that your arrow balances perfectly. (If you don’t have a triangular block, you can also balance the arrow on your finger).

Once you have found the balance point of your arrow, measure from that point to the throat of your nock. This will be your balance point measurement.




Conclusion

Once you have measured your arrow’s length and balancing point, you can use the formula provided in the diagram above to calculate the FOC of your arrow.

Certainly bowhunters want to be the best they can be so that they can get an ethical kill. But, when it comes to FOC, there are varying opinions on whether higher or lower FOC is better.

Some bowhunters want a lighter overall arrow weight, so that the arrow is as fast as possible. The intent is often to keep the deer or other game from “ducking the string.”

The desire for a lighter arrow is often why some hunters don’t want a “higher FOC” arrow (since adding more weight to the front of the same arrow, with inserts or heavier broadheads would increase FOC, but also slow the arrow down.)

tuffhead broadheads

Consider heavier broadheads and/or inserts when seeking a higher FOC. An arrow with an FOC of 8-12% FOC could be considered “normal,” while a “high FOC” arrow would start around 15% and can go up to even 30%.

Others want an arrow that has a higher FOC %, (you may have seen The Ranch Fairy discuss this) so that the arrow hits the animal with a heavier impact. This can increase the odds of a “pass-through” shot. It can also help increase the chances of a mortal wound in the event you encounter bone or other stiff tissue that might impede the arrow’s progress.

Hopefully you find our FOC calculator helpful and we hope you have an arrow that’s Just Pass’N Through!

suburban whitetail buck in field

Urban Deer Hunting… The Entertaining, Challenging, and Useful Suburban Whitetail

-By Jerald Kopp

The abrupt honk startled me.

Unbeknownst to me, I had slowed the truck to a crawl as I surveyed the thick urban wood lot. Suffice to say, the car behind me didn’t appreciate it.

The greenbelt sat behind a gas station and next to a small pocket neighborhood. I had caught a glimpse of a familiar resident… It was “Shaggy,” a disheveled old buck that still donned his velvet on the early December day.

shaggy the suburban buck

“Shaggy” is just one of a growing population of whitetails in suburban areas around the country.

But it wasn’t his set of antlers that justified his nickname, rather his mangy and matted coat. Shaggy always had a bad hair day – at least for the last couple of years. He wasn’t seen often, but this section was his core bedding area and the number of fender benders I almost caused here were too many to count.

Urban and Suburban Deer: A growing segment of the whitetail population

Urban and Suburban deer have been multiplying around the country for years. Even though hunting them is illegal in my hometown of Austin, Texas, deer nerds like me are always on the lookout for them. In fact, during the pre-rut and rut, I see an amazing number of shooter bucks within a four-block radius of my house alone. The untouchables I call them.

I’ve learned every wooded and semi-wooded area in my part of town and survey them regularly. I’ve also discovered various bedding areas, funnels, and trails in this mostly concrete jungle.



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I’m told I need to get a life, but I’m okay with that.

I have a friend (who will remain nameless) that has long since been known for his bow hunting escapades in suburban Austin. A commercial real estate professional, he’s never had a shortage of unoccupied greenbelt sections to visit with his bow in hand. He was once known for his common strategy of putting on camo over his dress clothes for impromptu bow sits.

I’m not a proponent of law-breaking but have to admit that I loved his stories. Plus, much of Austin is mired in a massive overpopulation of whitetails. Some areas are so crowded with deer that many live an unhealthy existence.

For me, this softened my friend’s violation. Conservation and herd management indeed.


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Urban Deer Hunting | It’s Tougher Than You Think

Suburban deer hunting presents unique challenges. I get a kick out of the common misconception that these deer are tame and, hence are easy to hunt. Consequently, the idea has been cultivated that all deer are easy to hunt and it’s not hunting at all. This mindset largely comes from some of the city dwellers that encounter them (many of them of course, anti-hunters).

When it comes to bucks (especially mature ones), this couldn’t be further from the truth.

urban deer standing in driveway

Just because you might see them in the “wide open,” doesn’t mean suburban deer are easy to hunt.

How do they hide in plain sight?

I’m still astounded by the random sightings of huge bucks in my neighborhood; often seemingly new ones. On many occasions, I’ve sat in my truck dumbfounded asking myself, where has this buck been all this time?

Sure, there are the deer groups often seen on manicured lawns. However, it’s not always the case, especially with mature bucks.

Despite living amid constant human activity, urban deer no doubt have people patterned. It has much to do with familiarity and hunting them is another matter altogether.

Just like in rural settings, changes in human activity promptly throws a wrench in whitetail tendencies.



“It will truly give you a new appreciation for what a deer will tolerate in its daily life. And, how quickly when one small thing steps out of that “normal” routine, a deer will take notice and alter its behavior in order to figure out what’s going on,” says Taylor Chamberlin of the Urban Deer Complex 2.0.

Tyler and his outfit tenaciously study and pursue the urban whitetail in the Washington, D.C. area – another region that houses an exorbitant number of deer.

Currently, there are many successful urban and suburban deer hunters around the country in areas where it’s legal to bow hunt them. In fact, suburban bow hunting now represents a popular niche in the outdoor industry, social media, and outdoor culture, and it should come as no surprise.

The ability to live in a setting full of consistent human activity adds more proof to the resiliency of the whitetail deer.

It’s astonishing the number of trophy class bucks that are taken a stone’s throw from playscapes, soccer practices, and strip centers. If you pay attention to hunting-related social media and other channels, you will no doubt hear stories about huge bucks taken within, if not near city limits.



There is no better example of such success than Lee Ellis and Drew Carroll of Seek One Productions who has had incredible deer hunting success right in the suburbs of Atlanta. In fact, they’ve taken bucks of massive proportions – bona fide trophy class whitetails.  

“Our goal is to show people that adventure is not constrained to wild remote places and that hunting is not defined by big woods and rural parts of the country,” said Ellis. He continued, “If you look hard enough, adventure can be found in the most unexpected places and can become part of your everyday life like it has for us”.




Suburban Hunting Tips

Deer hunting within and near cities and towns isn’t easy and takes work.

First, it’s difficult to get hunting permission and requires persistence. Be prepared to ask and ask again. Your odds are greatly increased if you can procure permissions on contiguous sections.

When hunting and scouting, it’s important to locate the areas with the best cover and better yet, their associated pinch-points. Think low impact. Drive the roadways and be willing to glass from both roadsides and parking lots before you ever attempt to set up a blind or deer stand. Deer are much more used to vehicles in these settings.

deer on sidewalk

Even if hunting with a bow and arrow is allowed in your suburban area, be sure to still obtain the proper permissions before hunting whitetail.

If they exist in or within the city limits, examine fields from a distance (especially agriculture). Finally, keep your ears open.

Much like in the country, the rumor mill is powerful. This is a good way to get info on good area bucks.




Leveraging Suburban Deer Intel for Rural Hunting Success

Finally, use suburban deer behavior (and hunting) to your advantage. It can be beneficial to your more remote hunting pursuits.

Urban and suburban deer hunting provides an opportunity to study deer behavior without heading to the ranch, lease or public hunting area. I’ve often said that my neighborhood is my classroom with lessons and experiences at the ready. As a whitetail hunter and enthusiast, it’s a gift. Simply observe and you’ll become a more proficient and educated hunter.

While there are differences in hunting near the city limits vs. more remote grounds, there are similarities as well. I’ve found that monitoring deer behavior in mine and other Austin neighborhoods has helped my rural hunting immensely.



On numerous occasions, I’ve seen first-hand the beginning of the rut in my ‘hood – heck sometimes even in my cul-de-sac.

The year 2018 was no different. It had an earlier rut period than in previous years. I woke one early November day to find that the switch had indeed been flipped. Many amorous, persistent and committed bucks were on their feet. This deer hunting geek was stoked.

It didn’t take me long to pack the truck and drive the two hours to our family farm to take advantage of the opportunity. And it paid off. Yes, all those reports predicting an early rut were true and I had first-hand proof – and time to strike. Game on.



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Hunting in urban settings also presents an opportunity to practice analyzing deer sign, trails, and calling skills – and become a better hunter.

Finally, there are other benefits of hunting in urban areas, including herd management, recreation, and positive economic impact on local communities. From an outdoor tradition, legacy, and conservation standpoint it also widens hunting’s (particularly bow hunting’s) reach and footprint.

Though I won’t hold my breath, I hope to be able to bow hunt whitetails in the greater Austin area someday. In the meantime, I’ll continue to be entertained and educated by them.

On the other hand, if you live in an urban or suburban area where it’s legal, do your research and get after it. You may be surprised by what you find.

jerald kopp of first light hunting journal
Jerald Kopp of 1st Light Hunting Journal.
doe smelling deer scent

Deer Scents | How And When To Use Them

It happens every deer season. Someone walks down the hunting aisle of a local sporting goods store, sees the deer scents and attractants section and begins to wonder how they can tip the odds in their favor during their next hunt.

When it comes to using scents and attractants, success comes from knowing the right scent to use at the right time. For example, you might not want to use an estrous scent in October, but it might be the best thing to use in Mid-November.

Let me give you an example…

It’s not just the scent that’s important… it’s using the right scent at the right time!

A Lesson In Scent Usage

It was the third week of October in Indiana, the pre-rut was on, and the deer were fired up. I had just climbed into my ladder stand, hung up my backpack, and pulled up my bow. As I prepared for this afternoon hunt, I had no idea what was about to happen.

I had just pulled an SD card from one of my trail cameras on my way to the stand. I had gotten to the stand a little earlier than normal, so I figured I’d have time to go through some of the pictures and check activity from the previous couple of days.


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Mock Scrape Magic

I had hung a dispenser of a new scrape blend scent that we were trying out and the results were extremely positive. I had bucks coming to this mock scrape nightly, but a new buck had shown himself that I had not seen before.

As I was going through the pictures, I randomly picked my head up and scanned the woods I was hunting, as well as a nearby cornfield.

Mock scrapes an provide some of the best buck intel you can get.

Then, I saw movement.

I got ready and then a deer came into full view. It was a spike, and he was on the move. So, with the opportunity of some interaction, I let out a few soft grunts. He stopped and looked, but that was all.

I decided to see what he would do if he heard a bleat, so I did. He turned and came in on a string.

Now, on my way to the stand, I had broadcasted some Battle Ballz in front of me. When the spike hit the scent; he walked in figure 8’s trying to pinpoint the source.



Success using scents and attractants comes from not just know what scents to use, but specifically when to use them.

Bleat, Grunt, Broadside

That’s when the hunt changed even more. While watching this young buck walk around in circles, I looked to my left and saw a second deer. It was him, the 9-point buck I had seen on my SD card just saw on my SD card just moments earlier!

I grunted at the buck and he put on the brakes. He didn’t look like he was going to commit, until I bleated once again. This bigger buck wasn’t about to let a little spike be near a willing doe, so he turned and walked in.

The buck gave me a clear, 35-yard broadside shot. Let’s just say I recovered him 125 yards away.

Thanks to the scent I had spread on the ground earlier, those bucks were able to keep their minds and their focus on other things. The grunt call, coupled with the scent, allowed me to take this nice 9-pointer.

As you can see, each “tool” we haul into the woods can make or break our success and overall hunting experience. In this case, the scent was the difference maker. But it’s not just the fact that there was a scent involved. It’s that it was the right scent at the right time.


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You see, this was mid-October, and my scent selections were a scrape blend, and Pay Dirt, a fresh earth scent, (I also used a dabble of another scent we were also testing for the next season.) As scrapes were popping up daily, one of our buck tarsal scents could have been another good choice.

On this hunt, the cover scents proved extremely effective, as a slight breeze was blowing straight toward those two bucks that afternoon.

Please note that it’s very important to follow your state’s laws when using scents and attractants. For example, Indiana’s game laws dictate that you can’t pour scent on the ground, but you can use in a scent dispenser which, makes the scent non-edible.



What Scents To Use… And When

When hunting with scents, I recommend the following guidelines, to ensure the best hunt possible.

Beginning Of The Deer Season

When deer season starts, regardless the month, use food scents!

Food scents are what separate a scent company from a urine company. What do I mean? Well we all know that urines have a time and place, but urines (deer, fox, skunk etc.) are used mostly during hunting season. A food attractant, however, can be used any time of the year.

Now, why would you want to attract deer any time of the year? The answer is simple, scouting.

Food Scents + Minerals

Scouting cameras are used more than ever before, and having a way to attract deer to those cameras are just as important as the camera itself. Lots of people say they use mineral or salt licks. Yes, using those is a great idea. Food scents however, can last for such a long time – even longer than mineral – because when used in a scent dispenser, the scent is protected from weather, such as rain or snow.

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Now, using scent with mineral is a deadly combo. We’ve found that using scent at your mineral site attracts game to that location faster, and from a further distance. This is helpful when taking deer inventory, promoting antler growth, and scouting for sheds. As I like to say, “the scent brings them in, but the mineral keeps them there.”

Pre-Rut

In mid-to-late October, as bucks are starting to rub and scrape, and pre-rut action is in full-swing, use scrape and tarsal scents.

During this time of year (pre-rut), scrapes are one of the best locations to use scent that you could ever ask for. The reason? Well, because scrapes are spots that you can predict bucks will visit.

I’ve kept a scrape active for months by changing my scents up through the various stages of the rut, drawing in countless big bucks. Use multiple scents together to simulate buck and doe activity. For example, when using a scrape blend or buck with tarsal, try adding some fresh dirt as well. By doing so, you will give the impression that the buck was just there, and you might just be able to get that dominant buck to shrink his home range and visit that scrape more often.




During The Rut

The beginning of November is a great time to use this estrus doe scent. However, because all does don’t come into estrus time, Buck Nuggets and Battle Ballz are also a great choice through first of December, or what is sometimes referred to as the secondary rut.

Post-Rut

Post rut, in my opinion, is one of the hardest time of the year to hunt. Temps are dropping, deer are tired, and food is scarce. During this time of year, I switch gears and go back to the food scents, using them like I did in the early season. Remember, tree foliage is bare during this time of year, and anything you can do to draw the eyes and nose of a whitetail is critical.

Hide Yourself… With Food

One tactic is to hang a dispenser of food scent where I would want to attract the animals, and hang the same scent in the stand or ground blind with me. Now I’ve doubled the attractant and doubled the cover scent at the same time.

Food scents are a good cover scent as well. So what if you walked into the woods smelling like apples, sweet corn, or acorns? That doesn’t sound too bad at all!

A comment I hear a lot is… “How will apple scent work if you don’t have apple trees on your property? No way Jose!”

Well, let me ask you a question. Do you know what a steak smells like? If all of a sudden you smell a steak, what’s the first thing you think? Probably something like, “Man that smells good… where’s that coming from.” You don’t think “nope, that couldn’t be a steak… there’s no butchered cows around her.”

Well, deer have the same thinking.



Scent Control Is Key

Proper scent control starts at home! Clothes stored in a sealed container with a food or cover will lessen the human odor you leave while walking, sitting, working or scouting in the woods.

Tips To Remember

  • Use food scents as an attractant as well as a cover scent.
  • Use cover scents all year long
  • While using scent in or around a scrapes, use multiple scents. Try using a buck and doe combo in your scrapes. Another trick is use a buck scent and dirt scent at the same time.
  • Don’t be afraid to experiment with different scents, even in the off-season. Scent sites are very effective ways to scout shed heads after the season ends.

In Conclusion

Hunting scents surely have a time and place. Keep in mind that your camo, tree stand, bow, and hunting scents are all tools we as hunters can use to have more success in the field and possibly create opportunities you’ve never had before.

Bryan Hussung, CEO of Scent Ballz