Front Of Center (FOC) for CROSSBOWS!
ฝัง
- เผยแพร่เมื่อ 29 ส.ค. 2024
- How is Front of Center (FOC) calculated and what does it mean for crossbow hunters? Watch and find out!
This is not a channel about shooting big bucks. I don't discriminate--I'll shoot any legal deer. ;)
I want to help make TH-cam the #1 place for quality hunting entertainment. I want to help spread the hunting lifestyle. To do that, I set up this channel to showcase the crossbow and help others film their hunts and get those videos online. So, subscribe to this channel to be entertained and learn more about crossbows and filming in the outdoors.
www.deathbybunjie.com for tshirts, koozies, window stickers, and more!
This channel is about my love of the crossbow, hunting, and the outdoors. I hunt almost exclusively with the crossbow. I love it. Sure, like a lot of kids, I started hunting with a good ol' Model '94 Winchester 30-30 back in the 80's, but drifted away from hunting when I went off to college, law school, and started a family. As my daughter got older, I regained my interest in the outdoors, and I consider myself lucky to hunt on the same property today that I hunted on as a kid. I got the Excalibur Axiom crossbow in 2010 and I haven't looked back. This channel is the result of combining my interest in filming and hunting...
...and music, too! My related channel, Yankee Militia, showcases my music. Some of the music is hunting-related, so check that out, too! The soundtrack for this channel is provided by my band, so the two are intertwined. The albums "Live Free or Kill" and "Zombies Gotta Eat, Too!" are available on Amazon.com and elsewhere.
Check me out on Facebook: / deathbybunjie
Subscribe here on TH-cam.
Twitter? @deathbybunjie ( / deathbybunjie )
I AM NOT SPONSORED BY ANYONE! But if you are interested in gear used by me (not necessarily in this video, but in general):
HUNTING:
Excalibur Axiom, upgraded with a Dyna Flemish string and Vari-Zone scope from Excalibur--recurves are simply perfect!
Firebolt arrows with Burt Coyote Lumenocks
X-Act Broadheads (also from Excalibur)
Scent A-way products by Hunter's Specialties
FILMING:
I began using the Canon T7i DSLR in May of 2017--such great autofocus!
Canon T5i (or 700D for you foreigners) DSLR camera until then.
GoPro Hero 2, Hero 3 Black
check out deathbybunjie.com for more info.
F.o.c. benefits accuracy because it pushes the center of gravity, of the arrow, closer to the front, allowing the fletchings to have more leverage on the broadhead. Higher focus setups also allow the energy to be more focused the tip of the projectile, which reduces deflection and improves penetration.
If you need to remove your inserts, there are a couple of videos about using a drill bit with nock removed. I just did 3 pile drivers and removed the aluminum factory inserts and replaced them with 100 grain brass inserts. I didn’t think it would work but it did!!! No heat needed. Took about 8-10 hits per arrow. Nothing damaged. All good. Ranch Fairy has a good youtube video on it. Just passing along. So now I have 100 grn brass inserts in place of about a 15 grain aluminum insert. They went in great and spin true. Just passing along. Made my day much easier.
That works great for moat but on some arrows it won't work. Those proflights are really something lol, bit and heat didn't work...
Rich.i have been watching youtube videos for a few years now.you are the first & only person i have ever subscribed to.you are a no bullshit kind of guy.you are a real hunter in my opinion.youre not a salesman or a "trophy" hunter.youre a real guy that hunts real world situations.and you keep it real.thats what its all about.i like youre truthful information.keep it up buddy.good luck this season.may youre freezer be full.
I don't own a crossbow yet , but I have spent hundreds of dollars chasing the proper arrow sizes for my compounds. At first, I tried heavy arrows with heavy broad heads believing the "heavy" equals penetration theory. Those arrows had terrible trajectories. I found an article about FOC for arrows and I learned that 7 to 12 % FOC works best for Bows. There are two forces working on arrows after leaving a bow. Gravity and lateral trajectory. Arrows leaving a bow with a high FOC will nose over fast like a fat kid and a skinny kid on a seesaw. Plus the pull of gravity along the shaft pulls them down. I have found that the least FOC, allowing for stable flight gives better trajectories by reducing the lateral arc. My bow has 3 pins on the site. Middle pin is dead on from 10 yards to 40 yards. Bottom pin for 40 to 60. I don't shoot game at 60. Top pin is for tree stands. Dead on straight down to 40 yards. 12% FOC.
My excaliber calls for use of 150 grain broadhead which would give you a higher foc than your 100 grain! Perfect shot placement anything will work. It's the marginal shots where that extra punch from a higher foc will really shine. To light and it can simply deflect off a rib bone where a heavier head and foc will punch and plow through with way less effort
I agree 100%. I have watched your videos for a few years now and from what I have seen your Axiom is very accurate and as you say that's most important when it comes to clean humane kills.
Good to hear thanks!
Heres an idea for future vid-
What size vanes is best for crossbow?
2"-3"-4"?
Straight?
Helical right or helical left?
Feathers?
Keep up the great series !
The type with blood on them😁😁
I agree that this isn't something to obsess over, however I do believe if you go to a heavier arrow, like a piledriver it makes good sense to use a heavier broadhead along with it.
Very good point, you want to preserve th at ratio!
Great advice and Thank you. FOC is a new term for me. Thx!
You are correct sir, FOC means nothing if you are hitting bullseye's. Sometimes a higher FOC helps some broadheads fly true at longer distances. You have to do some tinkering around to get everything tuned in. Enjoying crossbow appreciation month.
Glad you are enjoying it, and thanks for the comment and thanks for watching
Great video. With a properly balanced arrow broadhead choice is much less critical in regards to accuracy and arrow flight. Excalibur has their stock stuff set up pretty good and outside of using a 125 fixed blade I stick to that formula also.
Sounds like a plan, thanks and thanks for watching!
Also read that too light of a broadhead could cause my arrow not to fly straight( rear of arrow leans to the left in my case) which affects accuracy. Good info
Could be true, and foc could fix that
The battery in your Lumenok changed your F.O.C.
My bolts weren't quite as accurate after I installed my Lumenoks. I ordered weight washers for the head, from Three Rivers Archery, to compensate for the weight of the battery.
#1 Good information to keep in the back of your mind.
Yep, thanks for watching!
Very good information. You have to make a decision soon as your broadhead cause season opens next week. I can’t wait for it
Friday, livestream on TH-cam, 8 p.m.
Death by Bunjie I hope you have a successful opening morning
As far as mechnical broadheads go, I have been pleased with the durability and preformance from Rage. In particular the hypodermic. Ive also experienced better results with both a heavier f.o.c and arrow altogether.
Thanks for the videos! Hail bunjie!
Thanks, all good stuff and good luck out there!
I've had the opposite experience. Rage have failed on me twice. No loss, I have gone with NAP Double cross. Buck and doe last season, pass throughs on both. Use what you have confidence in, and practice with them. From what I've learned, where you're shooting from should dictate the head you use.
my crossbow almanach. Subscribed. Happy new year from germany!
Schade das man hier, auch bei mir in der Schweiz, keine Bogenjagd betreiben darf.
I agree that FOC is less important with a crossbow than a vertical bow. However, it provides better penetration guaranteed (in cases where you hit something like a shoulder blade) better accuracy in many cases, and a quieter bow. In many cases it won't matter. If you ever make a less than perfect shot, it might make all the difference.
Well said!
I run a 500gr total carbon arrow with my crossbow but only 6.8% foc, I can guarantee it hits harder and has more penetration than your 400gr bolts regardless of what FOC you have. Total arrow weight is the major deciding factor in penetration, and as long as you have ANY foc above 5% your arrow will fly like a laser beam.
@@puregameplay7916 I'm happy for you! Congrats
There has been some discussion about going with healthy FOC, AND shooting total arrow weights in the 650 grain category, tipped with a cut on contact, single bevel broadhead to achieve what most people don't/won't consider, and that is, taking quartering to shoulder shots. Supposedly, this total arrow weight has the potential to actually break the shoulder bone and pass thru the vitals. Anybody got any experience with this? My arrows are just over the 500 grain mark with a lighted nock and 160 grain two blade broadhead. I would take a slightly quartering to shot, shoulder forward, but would not aim at the should bone, only just behind it.
I'm all for aiming just behind it as you describe.
So, being a long time firearms guy and traditional bow guy, this got me thinking about ballistic coefficient and length of arrows. Now, DbB, I know y0u always recommend going with what the manufacturer recommends, BUT I'm wondering if longer arrows with longer (4") fletching might also help down range accuracy. Would higher F.O.C. + longer length (allowing the fletching to have more leverage, as williammocaby said) + 4" fletches allowing more surface area for stabilization create truer flying arrows? And there is the concept for your next amazing video!! (You're welcome! **WinK**) Hunt safely, my Friends!
Hard to improve on already perfectly accurate arrows...
Thank you and I very much enjoy all of your shows that you produce. I honestly wish you were a television show and or produced shows on DVD that I could purchase and collect for future references. That being said, I got the notion to get into shooting a crossbow and that lead me to your channel and I am hooked. I now have my crossbow and looking forward to the upcoming season... finally my question... you mentioned using a 100, 125, and a 150 gr. tip ? yet you dismiss the front of center theory... so do you use just a 100 gr. broadhead ? Or all three or ? I have a Carbon Express Pile Driver 390. I am pleased with it so far. It's smoking fast... especially compared to my late 80's compound bow... very accurate so far. I am a little dismayed that the manufacturer provided zero information on the arrow and broadhead selection or specs. But I am using as you say what came with it, same arrow and a 100 gr. tip and the luminous noc. What would be or would there be a advantage to using a heavier broadhead ? Isn't that the front of center theory? So as long as my accuracy is good, use of a 100 gr. broadhead is fine ? I never knew this stuff back in the 80's with my compound bow. My bowsmith set it all up and I sighted it in and it all worked lol... one last thing. I know you did a video when you upgraded your scope. Can you do another one showing more and current and comparable.... ? Thank you and continue to keep the programs coming. Very informative and professionally done. I am a retired Marine and a retired Gunsmith who is just enjoying life now and this crossbow stuff is a lot of fun and great addition to add to my hunting season. Gets me out in the woods again during archery season.
I use a 100 grain Broadhead. I'm going to play around with that this summer and do videos on just what you are talking about. However, I do think that for just about everything, a 100 grain Broadhead will suffice, especially with that crossbow you have!
Another Great video Keep them coming. See you Friday at 8:00 pm your time that should be 7:00 pm ct
Good point glad you're planning on it, wish me luck in this live stuff lol
I feel like I could see the difference in FOC in the days when I shot a compound bow, and a 28" shaft. I could actually see the arrow settle down faster. With a 20" bolt I can not find any difference, except that actual weight of bolt changes performance.
That's an interesting perspective, thanks! I think the shorter arrows really make a difference with this, and it kind of is what it is. Not much need for tinkering unless you're hunting special animals like moose. At least that's my opinion. Thanks and thanks for watching!
Im shooting 125grain 2 blade crossbow rage head great luck so far last 5years or so.
Can't ask for more than that! Thanks for watching and good luck this season, too.
Thanks for making these videos great videos
Thank you for watching them!
Rich, as noted on my previous posts from some of your other videos, I will soon have my Micro 335 Kryptek Raid crossbow. I was informed by Excalibur's Customer Service (They have been great in answering my many questions.) that the Raid package comes with 150 grain field points. Now, I have to consider 150 grain broadheads. (There has to be a reason why Excalibur sends 150 grain field points with their 16.5 inch Quill arrows.) Naturally, that generated another question for Excalibur Customer Service: Is the factory package of 150 grain field points and the 250 grain Quill arrow rated at the stated 335 fps? The answer was no; the 335 fps was with a 100 grain tip. (They did warn not to go less than total tip and arrow weight of 350 grains with the Raid package.) So getting back to FOC, have you experimented with your setup to achieve the recommended (Who recommended?) 12% - 18% FOC?
Too many questions and too little time! Lol. Please keep the great videos coming! They are a lot more interesting than MSM!
Excalibur recommends 150 grain on those, so we use 150 grain. Easy enough.
Great video best of luck this season bro
Thanks, and same to you!
I lost 30lbs and preform better with less weight FOC! :)
Congratulations, I need to do the same LOL
I need about 100 off my FOC, the 200 im already down helps,but another Benjamin would help!!!
my FOC is only 6.8 with 125gr swhackers on it. I shot 3 of my bolts with a field tip and then the forth with the swhacker practice tip and I had a 2 inch grouping at 60 yards which is as far as my scope is ranged for.
I'm glad to hear that because I'm using the same broadheads
@@kurtglo up upgraded to the 150gr 3" swhacker and I ended up shooting a deer in the face at 10 yards and it passed clean through its skull and killed it on the spot.
Great videos. I have been bow hunting for almost 20 years but had to go to a crossbow this year due to an elbow injury thats preventing me from drawing a compound.
I would like to see your thoughts on ramcat broadheads.
I have not used them but I can tell you these days I am more interested in two blades than three blades. Plus I like big mechanical cutting diameters. That being said, if you try them out and they are accurate with your crossbow set up, then by all means, use them. I don't doubt that they are effective if they are accurate, that's for sure. They are a mean looking Broadhead. Pretty durable looking too.
If you were to hunt moose FOC would be important. Increased FOC and arrow mass = increased penetration. Moose ribs are thick and with your rig you would require a heavier fixed blade broadheads. Bishop, Iron will. .. would work.
Totally agree, and someday I will do that hopefully
I know this will sound harsh but apart from your food plot vids that don’t have any relevance to me in UK , this video was the most pointless and irrelevant. Waiting for the new “how long can you keep your crossbow cocked for” video that you promised.
I do think you’re really inspiring and me and the lads do talk about you at least once every day, probably more if we are shooting. Keep up the good work.
Oli Lee I been following him since day one. He’s a true hunter and not a fake like on tv. Maybe u don’t like this video but so what. I like all his work. As far as your question, you can keep your crossbow cocked all day if need be. Just unload it at night. No problem what so ever
Keep em coming Rich. I love crossbow appreciation month 🦌🦌🦌🦌🦌🦌
It's kind of funny, but the point of the video was that FOC was, in fact, probably pointless and irrelevant to most crossbow people.
In regards to Broadheads, I think you may find the hypodermic rage to be very good. For my money, NAP Killzone is an outstanding broadhead! It is better than Rage in my opinion. Check it out.
love the NAP's but i am really happy with these Rages.
👍👍👍😃
I use the 100g toxic broadhead
But why is FOC considered important enough for the mftr to give a recommendation? Curious newbie wants to know.
Point was that manufacturer already calculated this for you when designing the gear, so it's not like we need to reinvent the wheel. You CAN get elbow deep in this stuff if it floats your boat, but you definitely do not have to in order to be successful hunting with a crossbow.
@@Deathbybunjie thank you.
How do I remove a Mechanical broad head from target bag?
Tough one, they're not really meant to go together, maybe have to unscrew it?
Thank you for this video/formula. goldtip.com wants way too much info about your arrow to calculate FOC. The kinetic energy calculator is great tho! Itll let you know if youre set up is moose worthy
Yep I like that too, I think I am moose worthy up to 30 or 40 yards, so ok...question now is whether the moose is Bunjie-worthy lol
@@Deathbybunjie Once you do the kinetic calculator there is a chart they provide explaining what game you would be ok to hunt.
But if that Axiom isnt moose worthy I highly suggest a Matrix 380 (which I bought thanks in huge part to your channel tbh!) But it has enough energy to take down about anything with the right weight arrows, but with the Diablos I just "robinhooded" @80 yards...only a bit on the wider side so I am looking for a Micro or similar for this thick Florida underbrush.
Your FoC is actually higher than you calculated. You should not include the broadhead length in the length measurement of your bolt.
But the broadhead is attached to it when i shoot it, so taking it off would make measurement inaccurate. also taking it off would reduce my foc.
@@Deathbybunjie yes its attached but that is not how it's calculated. There's a reason why its not included.
@@off-gridengineering3377 OK, I'll bite. What's the reason why it's not included in the length measurement?
I cant wait to hear what broadhead you go with.
Tomorrow 8pm livestream woohoo!
If it'll go through a hog, I would think it would be enough for bullwinkle
Agreed, funny one of the hunting guides I used in Maryland referred to them as Bullwinkle also haha
if it aint broke dont fix it
Exactly
Right on
**GriNNinG** Whenever I hear, "If it ain't broke, don't fix it!", I like to say, "Change doesn't make everything better, but NOthing gets better without change!". There. I said it. **WinK** Hunt safely, my Friends!
I agree it don't matter one thing if a persons rig works then it don't matter on bit!!!
Bunch of crap the regular hunter don't need to wonder about.
Unless your a CIA SNIPER or MILITARY SNIPER? To be honest I don't think many of them groups watch Death by Bunjie.. lol
No offense Rich lmao
No offense taken lol
I se
I see your other videos (more recent) you install weight on G's ( not try to spell her name) arrows, so I see you started looking more into foc, I'm definitely adding more to mine but I need more weight any was because I'm shoot 200lb limbs and using 20inch pile driver's, I'm just trying to figure out what Is a cood whitetail set up for a CP amped, should I be around 650-700 gr minimum with that bow or heavier, 200lb x5( min gr) that is 1,000, I want it to stay together and quiet, I will mostly shoot within 30 in the hills of KY, can you see my predicament, how much and were should I add inserts?? Please help BUNJI
I do like heavier arrows on the slower crossbows like Bunjie and Genevieve's Bunjie, Jr. but on my newer one, Bunjie III, the Scorpyd Deathstalker, shooting around 400 ft per second, I have no interest in that. I just put on a 150 grain broadhead and call it good! Plenty of penetration and lots of speed. That is the benefit of modern crossbows.