Contributors to this thread:
Two questions keep popping up regarding these heads.
1. Deflection on angled shots 2. If a single broken blade will cause the second blade to fold back into the ferule.
Here is the response from the GM of sevr heads. It all makes sense to me. Also, he responded within an hour of my initial email saying he’d get back to me next week and responded today. Great customer service should always be recognized!
The first question you posed makes sense with the many regular non-pivoting mechanical broadhead designs out there because blade breakage among other designs is fairly common. When the regular non-pivoting blade hits a bone one of the 4 scenarios must occur:
1 - Break the bone and continue on through the animal (which is what we all hope happens and is a good outcome) 2 - Deflect off the bone which may cause the arrow to deviate from its intended course 3 - Bend the blade (Not a problem in my opinion as it can still cut effectively.) 4 - Breaks the blade.
With the SEVR design, a head-on hit will still break the bone (#1) but SEVR’s locking-pivoting blade virtually eliminates deflection (#2). #3 can and will happen with all broadheads. Personally I would rather see a blade bend rather than break. A bent blade is still a cutting blade.
Non-pivoting broadhead designs are not good at managing blade breakage. Hit something extremely hard and the shock-load put on the blade and ferrule all come at once and it is extreme! When this happens, the blades can either bend or break. However, the SEVR locking blade design uses 2 bent locking tabs on the back of the blade that overlap and lock the blades open. In extreme circumstances this design also allows the tabs to “override” in such a way that the blades will interlock and expend the ferrule slightly. This acts as a shock absorber to prevent blade breakage that can occur in other designs. We have tested this extensively with the most severe tests we could devise and nearly every competitor head had some sort of blade or ferrule breakage. However, to this day, not 1 SEVR blade has broken in these same tests.
We have gone to great lengths to eliminate the possibility of blade breakage in the first place. Of course, we can’t account for every possible situation. But even if you did somehow break a blade, the deployment tab on the remaining blade would force the remaining blade to open, achieving a 1” one-blade deployment! To prove this, we shot SEVR into ballistic gel with just one blade installed (see image attached) so you can see what this looks like.
The long story short—The SEVR Titanium 2.1 is designed to virtually eliminate blade breakage, but even if it did happen, it will still open and create an effective wound.
To your second question, we have tested SEVR on 45 degree quartering shots into plywood and had no problems with the heads deflecting. We feel that the SEVR is going to perform adequately for any ethical bow-hunting shot situation.
Hope that helps.
Clint Warner General Manager SEVR Broadheads
Here the picture of the single blade head..
I asked if he had a video or pictures of the plywood shot at an angle. I’ll let everyone know what he comes up with.
Is this company brand new or have they been building other broadheads or other gear in the past?
The physical address is the same as Easton and Beman . The heads are the revamped ulmer edge.
New company but not new Broadhead. It’s the new improved Ulmer Edge and apparently owned by Easton
Thanks for posting Uscdryder....good info!
Thanks for the info. I knew it's the new ulmer edge I just couldn't find any info on the company. Easton and beaman are not exactly new kids on the block.
Thanks for posting. That is excellent information and it looks like Sevr has already covered the obvious bases.
All mechanical heads have advantages and disadvantages.
So do non-mechanical heads.
For the type of bows I shoot, mechanicals offer fewer advantages and some significant disadvantages and are thus not a good choice. Therefore I use different types of broadheads that are more effective with my setups.
These broadheads can be very effective with the right bow and arrow setup, though. It is so awesome to have the choices we do for equipment these days!
There is nothing gained by categorically calling them “a hunk of junk”.
"There is nothing gained by categorically calling them “a hunk of junk”."
There is if you are part of the elite crowd...
I agree with Treeline! Well said. I shoot the old muzzys but have nothing bad to say of others. Used to bad mouth mechanicals but not anymore. They have proved themselves over and again.
Well said treeline. I’ve never shot a mechanical but am considering putting 2 in my quiver for antelope and possibly elk in the right situation, assuming I find a head I’m confident in. That being said I’m shoot 82lbs at 28.5” with a 555gr arrow.
Regarding trial’s post...some people do a great job of making themselves look ignorant without anybody else’s help...
Big holes make for short blood trails. With your setup, an expandable should be fine. Elk are big and can push the limits of weaker heads so you would want a good quartering away or broadside shot and that is very doable with patience. Good luck!
They are poorly designed, and that design leads to them to taking odd paths once inside of animals. Not enough "point" in front of the blade axis to lead/hold the head on course once it starts meeting resistance.
The elite crowd, thats ridiculous. I shoot mechs at times for some game. I killed a Caribou and deer with mechs last year. Hunk of junk is a good description. Break a blade on these and the remainder is flaping around unsuorrted. Thats about a piss poor idea for a broadhead you can come up with.
I think the weird angles after impact have more to do with the swing blades than the point length. If point lengthen front of the blades is a factor, as Elkman thinks, then I think we’d see this effect on many COC heads that have been around for decades.
I shot one deer with the Ulmer Edge. Arrow hit the animal broadside and when it exited it went up at a prettty steep angle.
trial did you read the response? The tabs keep them straight even if a blade breaks. I would assume it’s bexause the tab isn’t sharpened so it’s going to create more dry than the sharp blade. There’s a picture as well in case reading comprehension is a struggle. If you want to sound intelligent, buy a head, shoot it, and then give your feedback. To give your feedback on a head that hasn’t even been released yet is dumb.
Here’s a video showing the exact opposite elkman. Actually the deflecting head looks like a rage. The irony! Haha
It gets so tiring hearing the same guys who have an affiliation with a product bash the competition. Go buy the head, shoot it extensively and then let us know your opinion based on fact, not because you get some free truck stickers from rage...
^^^ but it's kind of hard to give an honest and objective synopsis when you already hold a bias, or grudge in this case...
Your response is a video from from the manufacturer of the product, really unbiased info there. How many takes did it take to shoot that frame perfect?
I have plenty of experience with the orginals, which were also junk as well. When they worked they were excellent when they didnt it was total failure.
What's"plenty of experience"? I killed a pile (20+) critters with the ulmers and know some absolute killers that loved em. All total between myself and friends well over 100 animals killed with em and no bad reports. No bias. Just facts
Otcwill, cmon man facts and stats is what you’re gonna back up your claim... better off believing “fake news” ;-)
I shot a grizzly bear, Roosevelt elk, two black bears, two whitetails, a Coues deer and a blacktail with the Ulmers. They worked fine....were not super sharp due to the single bevel but you can touch them up. I used the 100 gr regular thread variety. Using a 60-65# bow with relatively light arrows (Goldtip 55-75 Hunters at 385 grs) I got penetration out the far side with the Blazer vanes retaining the arrow in the animal in most cases I didn't hit the far shoulder. Had a pass-through on a few too. They were incredibly accurate with great flight....just like field points and easy to lock the blades and test each arrow, which was a good idea with the Goldtip Hunters that I had.
That said, I prefer 3-blade heads and have moved on from the Ulmers. Good luck this fall!
Got my Sevrs in yesterday evening.
First impression, they are a very quality head. Sharp and they are going to open extremely easy.
I have one complaint in that the blades are ever so slightly exposed when closed. Locking them down in practice mode looks to me like blades would dull but that is not a deal breaker for me.
It is interesting to note that mechanical heads appear to be getting wider and wider when closed for flight. Almost like fixed heads!
A lot of people liked the Ulmers. I tried the Ulmers on a couple animals. One mule deer it performed as expected. On another animal (javalena) I too had weird arrow path thru the animals.
The sevr looks good thou. I like the titanium ferrel. And designed by Ulmer one of the best bowhunters to ever walk the earth. It Does have a pretty flat angle of the blades?
Yes it does Ermine. I believe this head is an improvement on the original but the large cut and blade angle make it suspect at best for elk. Supposedly it is believed that we would see the smaller niche 1.5" less acute blade angle in the future but the market is determining the 2" cut for whitetails.
As far as the blade angle too....I'm not worried on deer as there is no way these things Rob as much energy as a Killzone and they have been my favorite mechanical and a favorite of many.
If the originals were so great, why did they stop making them? The angle on that head looks too steep for my liking. Good luck, I'll stay with my fixed blade.
That's different! First head looked like a hypodermic in the video. Almost every time a mechanical thread shows up there are guys who mention they'd shoot em at deer, antelope,smaller stuff,but don't have confidence in them for elk ,moose,ect. Which is smart imo I'll stick to the Exodus,and Magnus, same performance every time every animal.
PECO- the originals had to stop because of some patent issue and trophy taker stopped producing them because of the patent issue.
Anybody shoot them yet? Let’s hear it.
Do they make noise in flight?
I shot them tonight...fly perfectly, as you can imagine with such a low profile.
I agree with Tree Line... .
I’m still shooting the Ulmers (bought 3 dozen when heard of patent issue), and have had nothing but great success! I’ve killed 6 bulls anywhere from 10 to 65 yards, two mountain goats, and countless antelope and deer.....not all have been pass through, but definitely the majority have. I don’t remember a single animal going more than 100 yards.
I’ve never noticed any crazy arrow deflections upon entry, and have never had a blade break. Like I said though I’ve only killed about 30 animals with them so I guess it could still happen.
Like I stated earlier, these results were all with original Ulmer heads and I’ll be ordering my dozen SEVR heads here shortly.
I find it hard to believe there is any "hydro-planing" through organs (heart and/or lung) with these heads due to the blades being more forward once deployed than other designs. If that happens, there is some other dynamic involved.
I shot mine too. They fly tremendously. Looks like a winner to me. Also...it doesn't seem as if the blades dull much though practicing but the jury is still out on that as far as I am concerned.
How sharp are they? Sharp...stupid sharp...stupid scary sharp?
They are sharp. They definitely don't suffer like the original Ulmers did. I didn't focus a whole lot on how sharp they were, just that initially I was not disappointed in the sharpness. Let me look at them closer tonight and get a better idea of how sharp they are.
Definitely a lot sharper than the original ulmer head. I loved the concept but wouldn’t use the originals because blades seemed dull when compared to other heads. I think these new ones will get a try for antelope.
I'll be hunting lopes with the Sevr too.
As far as the sharpness, I was slightly disappointed, you can't drag them across your finger nail (they'll catch) but the one i opened won't shave hair...Still I'm satisfied with the construction and packaging...Can't wait to stick one in an antelope next month!