Single Bevel BH damage thread

[bowheadhunter]

Sas bow sounds like a winner what is R/D ?
Thinking of bigfoot recurve I want the fastest smoothest one he makes with the most stable limb materials?? is a Ace broad head a same type cutting head in your post,

[Doc Nock]

Originally posted by bowheadhunter:
Sas bow sounds like a winner what is R/D ?
Thinking of bigfoot recurve I want the fastest smoothest one he makes with the most stable limb materials?? is a Ace broad head a same type cutting head in your post,

Joe, that's a good question.

R/D means simply Reflex/deflex..ie, the limb has a double bend instead of a simple D shape and it creates more power.

You need to ask Kirk about which is more of those things you want...he's a straight shooter and won't BS you to get a quick sale... AS for stable, Kirk i s a  fanatic about limb stability, vertical and horizontal...such that what you put into the draw goes into the arrow, not the bow on release...

I'm not familiar with all the heads...someone else might be. I THOUGHT       The Ace were double bevel but things change.

Next ones I buy will be from Bill Dunn of Zipper bows/Grizzly heads and go the Grizzly head route... they're great steel, super strong and affordable.  There are a running ton of good heads out there...and they don't have to be Single Bevel to work...just single bevel DO seem to have a few advantages that sold me!

[bowheadhunter]

THANK U Doc working out a bow deal soon with bigfoot,,

[JimB]

Impressive stuff Doc Nock.
I shot this antelope with a similar setup,190 gr Grizzly,rebeveled to 25 degrees by Ron at KME,700 gr,27% FOC arrow from a 53# recurve.

The other side was the entrance.The arrow smashed through the entry side humerus and the shaft was sheared of in two places,almost immediately by both shoulders.The broadhead was protruding through the exit side skin and this probably contributed to the size of the exit hole,even though the shaft had sheared off right behind the head.

Both shoulders had that same amount of hemorrhaging and I remember saying it looked like damage caused by a high powered rifle.The animal ran hard and was down in 40 yds.I also believe that the sharpness of that head was a big contributor.
 

[elkbreath]

That exit looks exactly like all those does I've shot with a 30-30

[Dan bree]

Hey doc nock . Miss you and killdeer down at the Baltimore shoot  jiber jawin.  Good to see your still shooting.

[Doc Nock]

Thanks Dan Bree,

Yeah, heard Killy weren't there and itd be a long drive for Moi!

Elkbreath,

Exactly.  That wasn't my deer, but ones I've shot look similar...not thru and thru front to back with lower poundage OLD bow, but hey... mine had so much damage it wasn't funny...

JimB,

Mine ran a short distance (30-40 yards on the two I got with single bev) and both had so much tissue damage I was sure it was my deer for a second, once skinned, but there was that S entrance on a broadside!

Joe,

Your best source of all things related will be Kirk himself.  Get that order going... the wait time isn't terrible, but it's maddening anyway!

[Yohon]

GREAT pixs and post Doc       .....shot my 1st critter, a hog, with a grizzly last spring and was impressed. Hopefully will get to do further "field testing" in a couple more weeks but dang that is some impressive damage.

I know it's hard to measure but I got think that the advantage of the single bevel has got to be enhanced by the sharpness that we can get on them. In other words back in the day with just file sharpened they were good but with all the great info out nowadays with how to sharpen them and tools like the KME that get em REALLY sharp I cant help but wonder how much that is improving the results that we are seeing???????

[Doc Nock]

JOhn,

This guy has been playing with single bevel and EFOC for a while, says he... and you see their conclusion (End of copy) is that if you DO NOT get that level of damage from SB heads, they're not as sharp as they should be...

I'm sharpening impaired... least till Ron talked me thru the KME... and then went from STOS double to single and they really get (and stay) sharp better then what I used to use to sharpen...(draw thru type).  That one put a very thin, fine edge on (19*) and it just didn't stay sharp...too delicate... I LIKE 25*.

[Ray Hammond]

Doc,
a fine edge on a properly hardened steel edge at 19 degrees is not too thin....on a soft or poorly heat treated edge, yes...that's too thin...

Most broadheads are under 55 RC...so they're easy to sharpen..and that's getting too soft...like an anvil..grizzlies are H/T'ed like a tool ought to be- and that's why people had so much trouble with the old ones.

[cacciatore]

Great stuff,Doc. Thanks for sharing.

[Kelly]

OK, very impressive. Now pardon me but whator who is KME?

[Sixgun]

Originally posted by Kelly:
OK, very impressive. Now pardon me but whator who is KME?

A very nice edge sharpening system.

 http://www.kmesharp.com/

Ray

[Doc Nock]

Originally posted by cacciatore:
Great stuff,Doc. Thanks for sharing.

Not my stuff, but passed to me as part of my own ongoing education and learning...thought a few here might find it interesting.

Kelly,

Ray made it easy.  Ron @ KME has walked many of us thru his great system... I had ones similar to the KME and still couldn't get things sharp... thought I was cursed.

Those other "systems" had too much slop in the guide holes where the KME is precise so you repeat the same angle each Stroke (Knife Sharpener)(now with BH jaws available), repeatability is as important in raising a good sharp edge as it is in repeating the same moves when shooting to be accurate!

[amicus]

Doc, hope all is well with you. Thanks for the pics. Check this out


 http://tradgang.com/noncgi/ultimatebb.php?ubb=get_topic;f=1;t=142335#000000

[Doc Nock]

Gilbert,

That is way impressive!!! Thanks for posting that.  I missed that post as January was pretty hectic for me having surgery and just getting settled into the area and fighting a very cold season here with a heat pump!    :rolleyes:        

Still haven't found anywhere to hunt here in TN, my adopted home... but hope springs eternal... Do have invite for a couple days in Central TN, just nothing close to home here for short jaunts...

Thanks for the well wishes...

[Tedd]

I finally ordered a pack of 185 gr Grizzlies. Plus a 75 gr adapter = 260 gr.
I'm all set up with 250 gr VPA 3 blades but if these shoot the same I'll put both in the quiver.
Hopefully 10 grains heavier won't be noticeable.

[Jack Skinner]

Hope you dont mind me bringing this one back up. This years doe antelope shoulder blade. 200 gr left single bevel 3:1 tradepoint. My shot was high but the broadhead blew thru the shoulder and took out spine. She went no where.
 
You can see the crack in the bone leading down and to the left. You can also see the S shape that splits the bone.

[Jack Skinner]

Being a old AF medic the hole and Fracture were easy for me to see. Someone mentioned that maybe not so easy for others see if this helps. The blue is where the broadhead went thru the scapula. The bone then closed around the shaft, but not before the spining of single bevel split the bone. Inside the yellow running to the left out of the initial puncture of the bone is a crack or split in the shoulder running out the edge of the bone.