Trust me, I am not trying to cause a problem with all this heavy arrow stuff.
I was failing.
The Ranch Fairy and promotion of high FOC (Front of Center) arrow systems began because of failure at impact.
High FOC Arrows | How and why they began to matter
Ok, so here’s the abridged version of how and why high FOC arrows became so important to me.
I really like fishing, bowhunting, and shotguns. (Of course, after 30 years of marriage – and still going – Mrs. Fowler is awesome too).
So anyway, I killed a 150” deer in 2009 and just lost interest for “deer” hunting. I became an adult along the way (which surprised me too), had kids, and helped them become quite competent adults and outdoors folks.
I did NOT, however, lose my love for hunting mature, feral hog boars. They are every bit as challenging as a cagey whitetail, with additional features. Mostly, they suck up arrows like a vacuum and run off laughing.
When you ask the guys at the local shop why they get away so often, they say something like, “big boars are just tough.”
I had no other thing to try. The archery shop “dock talk” wasn’t working.
Now, this is not a popular thing, circa 2013. I mean, it’s completely irrational, right?
Except Ed was regularly killing Asiatic buffalo, including exit holes, and he had a couple rhino’s, with a bow, as a kicker.
Oh, and just to check the man card, he used traditional gear.
So, I jumped off the bridge and never looked back. What did I have to lose?
Fast forward 7 years and hindsight being what it is, bowhunting is very simple… bowhunting is 100% equivalent to what happens at impact. And, how much penetration your arrow achieves will increase your success; not the bow, stabilizer, or whiz bang back tension release, or a miracle peep sight.
The broadhead and arrow kill the animal.
Which one is best? Let’s move on.
Murphy’s Law (Anything that can go wrong will go wrong) certainly applies to bowhunting. But, what if we could have things go RIGHT more often?
What is a high FOC arrow?
So, Fowler “land the plane man!” Get on with it… “what is a high FOC arrow?”
Now, before we continue, you must realize that FOC or “front of center” is the measure of how much total arrow mass is in the front. The industry says 8-12% FOC is normal.
A high FOC arrow starts around 15% and can go up to 30%.
Just as a comparison, we are talking about 100 grain points vs 300-350 grain points.
So, I’d agree wholeheartedly that 8-12% is normal FOC. But that doesn’t answer a simple bowhunting question. “Is that the optimal arrow FOC from bow to animal i.e., “in flight” or is it the optimal arrow FOC to get through the deer, hog or other animal?”
The industry just leaves that as an assumption while moving on to bow tuning and other shenanigans.
How to calculate the FOC of an arrow
To determine the front of center (FOC) of your arrow, first install the inserts, points/broadheads, wraps, vanes, nocks, etc that you will be using on the arrow shaft. Once you have completed your arrow setup use the equation in the graphic below:
Divide the length of the arrow (indicated by “L” in the graphic above) by 2.
Find the balance point. (The balance point is where the arrow balances perfectly on your finger or other object). Mark the balance point and measure the distance from that point to the bottom of the groove of the nock (this distance = “A” in graphic above).
Subtract center of the arrow measurement (calculated in step 1) from the balance point measurement (calculated in step 2).
Multiply the result from step 3 by 100.
Divide the result from Step 4 by the arrow’s overall length (L). This result will be the FOC of your arrow.
If you don’t want to take the time to do the math to find your arrow’s FOC, you can always use an FOC calculator. Just be sure your arrow has the inserts, points/broadheads, wraps, vanes, nocks already installed.
During my journey, somewhere around 16% FOC, I started to see much more consistent grouping. It was like I was a better shot. It just doesn’t take as much concentration on form and grip, etc.
The heavier points, after proper bare shaft tuning, seem to pull the arrow along, and the fletch is just back there stabilizing the end of the arrow.
Better broadhead choice
Finally, the jump to these higher FOC arrow systems almost requires you to buy better broadheads, made of great steel.
It’s not uncommon to have tool grade steels. The heads are machined, one-piece, and .08 thick.
They are solid. No fail points – (Rule #1 – Structural Integeriy… CHECK!)
For the bowhunter, this discussion may seem a bit off the rails. I would agree. The FOC town has an idiot, and I am he.
However, my pig killing stats have gone to almost 100%. Literally, if one gets away, I made a non-vital hit, and that’s on me.
But, the adult arrows don’t fail anymore. My arrows don’t break, the broadheads don’t bend or dull on impact, and penetration is almost always into the dirt (unless I hit a big off-side bone, which usually breaks, and turns the pig into a three-wheel drive unit. Pigs have short legs, so from an elevated position, its common to hit the ground before it passes through.)
In closing, I am vitally aware a “normal” arrow system kills millions of critters a year of all sizes.
Mechanical broadheads, the same. I got that. I’ve done it.
But, what if you had an arrow system you knew, for a fact, was going to achieve an exit wound in the absolute highest number of situations – all impact side humerus breaks, shoulder blades broken, and spinal columns snapped with almost 100% efficiency?
What if we accept Mr. Murphy is still alive and well, but we used a tool to level that playing field?
The next time you see your hunting arrow, you should ask, “Is my arrow system capable of almost any impact point OR only if I have perfect shot placement?”
Bowhunting is 100% equivalent to what happens at impact. And, how much penetration your arrow achieves will increase your success.
SEVR originally came out with a broadhead that had a 2.1” cutting diameter. It was a great head with fantastic flight and it was tough. But, the penetration is about what you would expect from a 2.1” broadhead and it was a bit lacking in kinetic energy for my purposes.
For a deer, or even for smaller game like turkey, if your number one goal is a big hole, the 2.1” SEVR is going to deliver. But to round out their lineup, they’ve come up with two additional offerings.
SEVR 1.7-inch Broadhead
To compliment their original broadhead, SEVR introduced a 1.7” head. It has a stainless steel tip and it has got a good grade aluminum ferrule. It has rear deploying blades that lock in place, which I love.
The 1.7” cutting diameter provides decent penetration and is a good all-around broadhead offering for pretty much any kind of game.
SEVR 1.5-inch Broadhead
SEVR also introduced the 1.5-inch head. The 1.5-inch operates just like the 2.1-inch with a few design differences.
On the 1.7-inch head, the tip is not quite as big as the 1.5-inch head and also has a smaller ferrule. The 1.7-inch head only comes in a 100-grain and is a little cheaper, while the 1.5-inch head comes in a 100-grain as well as a 125-grain.
SEVR 1.5-inch and 1.7-inch heads | The details…
Firstly, just as the name implies, the 1.5-inch head has a 1.5-inch cutting diameter. Also, the ferrule and tip on the 1.5-inch head are titanium, as opposed to the stainless steel tip and aluminum ferrule of its 2.1-inch predecessor.
The blades of the 1.5-inch head are stainless steel and lock into place just like the 2.1-inch head.
The 1.5-inch head is designed for big-bodied, heavy-skinned animals. It is also better for longer distance shots, due to the smaller cutting diameter.
Although the cut is 1.5” wide, the chiseled tip itself is approximately 5/16-inch wide. So, with the 1.5-inch width cut in one direction and the 5/16-inch wide tip cut in the other direction, you get a total of a little over 1-3/4 inches of cut with a 1-1/2-inch hole.
SEVR has a direct-to consumer approach, so you can only order them from their website. You can purchase them by the eaches, but you can get a better deal if you buy higher quantities.
At the time of this article’s publishing, the 1.7-heads are $11.99 each. The 1.5-inch head is $13.99. The 1.5 is more expensive due to the titanium head. You can purchase at SEVRbroadheads.com.
Using code LUSKFIVE will give you $5 off any order at SEVRbroadheads.com!
Blades and cutting features
I love the way the SEVRs work. They have two small “wings” that are exposed during flight. When they come in contact with an animal, they actually “pre-stretch” the hide (skin) as the blades deploy. In theory, since the blades are rear-deploying, not only do you get a 4-cut entry, but you get a bigger cut.
The heads of the SEVRs also lock into place. So, unlike a lot of mechanical heads that can close down if there’s not a certain amount of pressure, these heads lock in place and they stay that way in the animal.
Because they lock in place, they will not give a smaller cut than they do at their full deployment. The blades will go back into pre-deployment position when removing from the animal, but will still lock back down in deployment position.
If you’ve ever shot a broadhead into a deer or other animal and hit bone, it typically deflects off course. But, the great thing about the SEVRs is that the will rotate to one side if they come they come into contact with bone or a hard medium like a rib. The blade will simply fall to the side that encounters the bone, allowing the other blade to continue cutting and still keeps the broadhead on track.
This feature helps increase the chances of getting a good exit and getting better penetration of lungs and other vitals when the head encounters bone. And, because the blades stay locked even as they rotate, they just “dance” around the bone.
Another nice feature to the SEVR broadheads is that when there is heavy pressure on the blades – the type of pressure that might bend or break both blades – they compressed ever so slightly to absorb some of that impact. Because of this feature, they are difficult to break.
The 1.7-inch heads have a blade thickness of 0.035-inch thick. The 1.5-inch heads have blades that are 0.032-inch thick. Both heads have all the same features, locking in place and pivoting around bone, staying on track.
I was excited that they came out with a 1.7 and came out with a 1.5 because the 2.1-inch was just a little bit much for me to be able to be confident that I would be able to get a pass-through on an animal.
Although I knew I would get a big hole, I needed to be confident that I would get pass throughs. And, when hunting large animals like elk or bear, I want to be sure I get deep penetration.
Blade angle and overall cut
Another thing I like about the 1.5-inch head versus the original 2.1-inch head is that the blade angle is much less. So, penetration is not only better because of a smaller cutting area, but it’s also better because of the smaller angle.
The same with the 1.7-inch head. While it has a slightly larger cutting angle than the 1.5, it is still less than the 2.1. So, the 1.7 also gets better penetration, not only because of the angle, but because of the smaller diameter cut.
Now, you might think, “Oh, 1.5 or 1.7 inches is kind of small.” But, there are not many fixed heads that have a 1.5-inch cut. They might have a combined 2-inch cut, with 1-inch one way and 1-inch the other way. But, what I have found with broadheads on game animals is that the wider a cut, the more effective bloodletting you will get.
On three and four-blade broadheads, although you may get more total tissue cut, you get a smaller cutting diameter. And, smaller holes tend to get plugged up easier with organs blood and tissue, resulting in less effective blood trails.
But, when you get a wider cut, even like a 1.5-inch, the hide and wound tend to stretch open as the animal moves, producing better bloodletting. Of course, with the 1.7, you would get even more. With the 2.1-inch head, you’re going to get a lot of bloodletting, but you are going to compromise penetration to do so.
So, with the new SEVR lineup, you have something for everyone. But, what I really wanted to see was… how do they fly? They are really the same heads, so I just tested the 1.5-inch.
When it comes to target shooting the SEVR heads, there is a feature that helps them stand out. Each head comes with a small set screw, so that when you shoot, the head stays in a closed position. Because the blades do not deploy, they don’t touch the target at all. It’s very nice on your target and on the head itself.
So, in essence it makes the actual broadhead a practice head, and is easy to pull out of the target. Just be sure that when you hunt, you have removed the set screw, or the blades will not deploy.
Penetration and durability testing
For my penetration and durability tests, I shot the SEVR heads through 1-2-inch layers of MDF, with a foam mat in the front. I also shot them at a 45-degree angle on the MDF. After those tests, I shot them into a steel plate.
For testing, I shot the Bowtech SR6, set at 72 pounds, on the comfort setting. The arrows I used with the heads are the Bishop Mammoth FOC King, bsecause they are the most durable arrows made. These tests really put the arrows through the ringer and yet they don’t get damaged, as they are incredibly resilient.
MDF Board Penetration Test
I shot the 1.5-inch, 125-grain head and the 1.7-inch, 100-grain head into the MDF. Both broadheads penetrated all the way through the first board and then stopped into the second board.
In the back of the second layer of MDF, the 1.7-inch bulged out a little bit. The 1.5-inch bulged out quite a bit more.
On the entrance hole, both deployed upon impact even with the soft pad over the first board and the cuts are exactly as advertised.
The 1.5-inch head opened up to 1.5 inches. And the 1.7-inch head opened up to 1.7 inches exactly.
45-degree angle shot into MDF
I set up two MDF boards at a 45-degree angle and shot both the 1.5 and 1.7-inch heads into it.
Both heads penetrated precisely straight through. There was no sliding off the 45-degree angle board at all. And, the penetration was great for both of them. You see the top one was the 1.5-inch, the bottom the 1.7.
Steel Plate Penetration Test
Because these heads held up so well in the MDF testing, I also shot them into a steel plate to evaluate what would happen.
I honestly wasn’t expecting them to hold up that well after all those other MDF board shots. But, they went through the steel plate and then through the second board.
You can see that the 1.5-inch at the top, blew all the way through it. And you can see the tip of the 1.7-inch, 100-grain, sticking at the bottom.
Here are the heads after going through the initial two layers of MDF and then another layer of MDF and an angle, and then a layer of steel plate and then another MDF, half inch MDF. All of them were half inch MDFs. And they both held up extremely well.
On the 1.5-inch, there was zero damage to the tip. The blades took very little damage, incurring only one nick. (The nick at the bottom is part of the design that holds the rubber bands in place.)
As for the 1.7-inch, they too held up really well, receiving small nicks both blades from the steel plate test.
Overall, the SEVR heads held up really well, including the blades, tips and ferrules.
BONUS: SEVR 2.0 Ti Broadheads Review
Below I’m going to show you the results of my testing of the SEVR Ti 2.0, but first, a little history behind this head…
How the Ti 2.0 came to be
SEVR originally came out with their first broadhead, called the 2.1, which was just known as the SEVR. It had a massive 2.1 cutting diameter, and some really cool features (blades pivoting around bone and a super low profile in flight, titanium ferrule, etc.)
There was a lot I liked about that head and I did some initial testing on it when it first came out.
The only drawback that I saw in that head was that it wasn’t the best at penetration. Now, with a full 2.1-inch cut, you don’t expect it to penetrate super well, but I thought it should penetrate a bit better than it did.
So since that time, SEVR came out with the 1.7 and the 1.5, which I’ve covered above. They shortened the cut a little bit in the 1.7, and 1.5 (1.7 inches and 1.5 inches instead of 2.1). I’ve since come to love those heads. In fact, the 1.5 is one of my very favorite heads, period. It’s more durable than most fixed-blade heads and by far the most durable mechanical that I’ve ever tested. I’ve taken animals with it all over the world.
Well now, they’ve come out with another big cut model that is also supposed to maximize penetration. And that is this Ti, (Titanium) 2.0.
The SEVR Ti 2.0 compared to the old SEVR 2.1
I tested the SEVR Ti 2.0 for penetration, for edge sharpness and retention, and for durability.
I didn’t test the flight because I’ve already tested the flight of the SEVRs quite a bit and they fly exceptionally well. You can see the low profile. They just fly like a field point.
But I put it through all those other tests and I want to compare the 2.1 to the new 2.0 and see what the difference is in terms of penetration.
The SEVRs have a solid titanium ferrule that is grade 5 titanium and one piece all the way up, including the tip.
The blades are made out of a hardened 420 stainless steel at 0.032 inches thick. The blades are held in place by a little O-ring at the base that fits into that groove and when they’re shot and penetrate into the hide when they first made contact, the winged tips pushed the blades back and they deploy and lock into an open position, giving a full cutting diameter (in this case, 2.1 inches).
These two heads may look similar, but there are three main differences.
The new Ti 2.0 has a slightly smaller cut, 2.0 inches versus 2.1 on the original SEVR.
The blades of the Ti 2.0 have a more swept angle (less straightness) to them, so they’re going to get easier penetration.
The little winged tips that caused the deployment of the 2.1, they protrude a little bit farther beyond the blade than they do on the 2.0. On the 2.0, they just slightly protrude, and that increases penetration.
So, those three changes and modifications from the 2.1 to the 2.0 are supposed to result in up to 15% deeper penetration by and large. So I was eager that to the test.
SEVR Ti 2.0 sharpness test
The SEVR Ti 2.0 was still able to cut paper cuts paper after five strokes of the shaft of a carbon arrow.
Ballistic Gel Penetration test comparison
I shot both the 2.1 and the Ti 2.0 into ballistic gel that was fronted by a rubber mat and 1/2″ MDF.
Ti 2.0 MDF durability test
I shot the Ti 2.0 into MDF to see how it would hold up. The results were surprising.
Then, I decided to see how it would handle a .22 gauge steel plate.
One last thing I think is worth noting on the Ti 2.0… If you already have the old 2.1 heads, you can just order the blades for the 2.0 and swap them out. These can be used with the ferrule of the 2.1. So, it’s nice that you can do that. If you want to pick up some penetration from the 2.1s that you already have, just get the new blades and put them in there.
When I first heard the SEVR broadheads were hitting the market, I had a lot of hope that they penetrate well and hold up well with the changes made to the new models. These heads have exceeded my expectations.
In terms of flight, I knew they would fly extremely well. And, they fly as good as any mechanical head I’ve ever tested. They are like a field point in flight, flying right up there with the very best.
In terms of penetration, they were excellent, maintain outstanding durability as they were shot into 4 total layers of ½-inch MDF, a steel plate and foam mat.
So the SEVR 1.5 and 1.7-inch are really a good heads for bowhunters to consider for various animals.
I have used tested and used other hybrid broadheads on the market, but the Afflictor heads are different than other designs. They have a main cutting tip that’s about 1/8-inch thick, made of 420 stainless steel that is extremely thick and sharp and will not fold over.
They also have a feature they call a “drive key,” that also functions as a bleeder blade that opens up the main blades, but also cuts extra tissue.
Afflictor 1-3/4″ K2 Hybrid vs Afflictor Ultraviolet | The differences
On the 1¾-inch Afflictor Hybrid (or, K2 Hybrid as Afflictor calls it), the drive key has little prongs on it. They are designed in such a way that if they hit hard bone, they will shear off by design, so that the head can continue to penetrate. In fact, everything about this head is designed for penetration.
Afflictor also offers a head called the Ultraviolet, that is purple in color. At the time of this publication, it is the only purple broadhead on the market.
The Ultraviolet has a little bit different design. The main tip of the Ultraviolet is longer and more swept than the original Afflictor Hybrid. Due to that design, it has a little bit better penetration.
Another difference is that the Ultraviolet has non-shearing drive key that functions as a bleeder blade. So it’s a half-inch wide and will open up the blades and continue to cut tissue.
With the Ultraviolet broadhead, you get a 1¾-inch cut and plus the ½-inch bleeder, for a total of a 2-inch cut.
Afflictor also makes a 1½-inch model of this as well and it also has the ½-inch bleeder, for a total cut of 2 inches.
Both versions of this broadhead fly extremely well. They are both 5/8-inch thick in profile, which is like most other mechanical heads on the market. The specs and construction are top-notch. They also spin very well in flight.
On impact, the drive key comes down and the blades open. There is also a pretty strong o-ring that keeps the blades from rattling during flight.
The NAP Killzone is my standard for comparison testing, as it’s been around for many years. It’s a really reliable and super strong head. However, it doesn’t penetrate very well, so anything I test should penetrate better than the Killzone.
For comparative purposes, I tested penetration and durability in comparison to the NAP Killzone broadhead.
If you have seen any of my broadhead tests on mechanicals, you know that when I do comparative tests, I don’t test them on animals. The reason I don’t do this is because they don’t hold any value.
Different bones have different densities and bone geometries. Every animal is different. In addition, shooting angles on animal bone could have varied results, which would not provide good insight into how the broadhead truly performs.
So, I use a uniform medium to simulate animal anatomy as best as I can. I use carpet on the front and the back to simulate animal hide. I also use a rubber foam to simulate tissue and ½-inch plywood in the middle to simulate the bone.
Then I use a few more layers of rubber foam toward the end for padding, followed by another 3/8-inch plywood at the end just in case it were to make it through all of that.
I also have a thin sheet of cardboard in the very front to get a visual on how well the heads deploy on impact.
Penetration Test #1
I first tested the Killzone head, followed by the Afflictor 1¾-inch head and the Afflictor Ultraviolet.
In the penetration test, the Ultraviolet out-penetrated the others by a wide margin. Of course, the Ultraviolet it has that more swept initial tip and also has the 1½-inch cut, and that solid drive key. Those factors made all the difference in this penetration test.
The NAP Killzone tip came through the wood, the blades did not. The NAP has a good, long tip that’s really tough. But the blades didn’t do any cutting on this test. All the broadheads in this test held up well in the penetration test.
Initial Cut Size
When inspecting the opening cut, the Ultraviolet opened 1½ inches from the main blades and then ½-inch from the bleeders and the bleeders stayed intact.
The 1¾-inch Afflictor Hybrid opened 1¾-inch on impact and then had the drive key bleeders cut a ½-inch and those stayed intact as well.
The NAP Killzone advertises a 2-inch cut, and it actually cut a little over two inches (2-1/4 inches).
So, all the heads in this test opened well.
Penetration Test #2: Angled Shot
In the next test, I performed a steep angled shot.
I first shot the Killzone and it stuck right in. Then, I shot the Afflictor 1¾-inch Hybrid. It stuck in, but angled off a bit. Lastly, I shot the Afflictor Ultraviolet.
In the diagram below, you can see that the Killzone and the Ultraviolet penetrated through the back of the wood. The Killzone point come through the wood but not the blades. The Killzone also broke off at the ferrule and broke my arrow.
The 1¾-inch Hybrid went through all the layers of carpet and foam and cardboard and made a deep cut in the wood, but it skimmed across the top of the plywood.
Penetration Test #3: Afflictor Ultraviolet into 22-gauge steel
In this test I shot the Afflictor Ultraviolet into 22-guage steel, backed with a 3/8-inch sheet of plywood, a ½-inch sheet of plywood, 4 rubber mats and a Rinehart target behind it.
Because I didn’t want to break another arrow, I used the Mammoth Arrow by Bishop Archery, which are guaranteed for life.
The Ultraviolet went through the 22-gauge steel plate and poked through the back of the 3/8-inch board about a ½-inch. The tip held up really well.
When I have shot other heads into steel and plywood in this manner, they only hold up when the blades don’t reach the steel plate. But here, the blades held up and even opened up inside of the steel plate. Even the drivel key was still intact.
I’ve shot the Afflictor K2 Mini broadheads not only in tests that I perform, but also in the field. I’ve killed turkeys, hogs and deer with these heads and they’ve always performed very well.
The K2 Mini is basically the same as the other hybrids (the Afflictor 1-3/4” Hybrid and the Ultraviolet). The K2 just has a shorter overall profile.
I have shot these at long range and know that they fly very well, so I did not put them through a flight test as I typically do with the other heads.
K2 Mini Up Close
Below you can see the K2 Mini up close. And again, it’s just like their other K2 Hybrid, only it has a shorter ferrule, which is going to aid in flight, since it has less surface area.
So let’s put it through the test and see how the Mini performs.
K2 Mini out-of-the-box sharpness test
The K2 Mini was able to cut paper after two strokes of the arrow but not after the third.
Penetration test of K2 Mini
I shot the K2 Mini through a rubber mat, backed with 1/2″ MDF and ballistic gel. The results are below.
K2 Mini durability testing
I shot the K2 Mini through 1/2″ MDF that was backed by a Rinehart target. See below.
K2 Mini steel plate test
Usually, I don’t do this test with expandable broadheads, but I also shot the K2 Mini into a .22 gauge steel plate because they typically don’t make it through the first time. But, this one made it through the first time just fine. The second shot did some damage. See below.
It was pretty impressive for a mechanical like the K2 Mini to make it through the MDF four times and through the steel plate twice.
In this Afflictors broadheads review I learned a lot. I didn’t really know what to expect from these heads. But, I have to say I was impressed. They have a very low profile and will fly really well and shoot accurately.