Single Bevel Broadhead Side

[strousek]

Looking for tips on first how to properly diagnose arrow spin direction. Then depending on spin direction which side bevel broadhead to get. I had a bad experience with a Stinger Black Hornet on a moose rib last year so looking to change to RMS Cutthroats. Any advice is appreciated.

 

[backcountryshaffer]

I think it should be the same as your fletching and your screw threads, which is usually RIGHT.

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[RaggedHunter]

Match bevel with the helical or offset of your fletching.
Right helical = right bevel. (Most common)
Left helical = left bevel.

Cutthroats are a great broadhead. They shoot incredibly well for me. Do yourself a favor and get a KME knife or broadhead sharpener to sharpen them. They are super easy to sharpen with either of those.

 

[strousek]

Thank you guys

 

[Mighty Mouse]

Like others said above, match the bevel orientation to your fletching orientation. Here are photos of my current setup with right offset fletching and right bevel Cutthroat.

 

[Beendare]

FWIW, I think most 'Bad Experiences' we hear about are more related to poor arrow flight than the BH.

Could that be the case here?

I do like a more tapered BH design for the mechanical advantage they offer.

_____

 

[Nick Muche]

Mark your nock on a bare shaft with a sharpie line.
Shoot that arrow at 3-4 feet or so.
Take note of the direction your arrow spun.

Most people shoot Right Helical (offset), when in fact their arrow is spinning counter clock wise and will ultimately fly a little better with Left Helical (offset).

Fletch accordingly and buy the correct single bevel heads to match arrow spin and offset.

 

[SlickStickSlinger]

I'm shooting 200g cutthroats this year on a 28" 250 spine, 552g arrow.
I noticed

View attachment 200118

I also noticed a tad bit more helical than I put on my vanes. Three or four fletch? Shouldnt four fletch be a little less helical than a three fletch?

Mighty Mouse's photo may be a little misleading in that the helical isnt really as pronounced as it seems in the photo.

 

[Nick Muche]

Keep your Helical around 2-3 degrees and that's really all you need. Anything more will create unnecessary drag at distance.

 

[Mighty Mouse]

I also noticed a tad bit more helical than I put on my vanes. Three or four fletch? Shouldnt four fletch be a little less helical than a three fletch?

Mighty Mouse's photo may be a little misleading in that the helical isnt really as pronounced as it seems in the photo.

The arrow in my photo is fletched with four Bohning Ice vanes using a straight clamp set at approximately 2.5-3° right offset. My fletching jig (Bitzenburger) doesn't have an angular indicator, but best I can figure, I have it set around 2.5-3°.

All else equal, a four fletch configuration will produce more drag than three fletch. So if you wanted to achieve the same amount of drag (with all other factors equal), you'd need a smaller helical angle with four fletch than three fletch. But the helical angle you "should" use is debatable, and there are factors other than angle that affect total fletching drag (e.g., vane height, length, and profile). Four low profile vanes at 3° could theoretically produce less total drag than three high profile vanes at 2°.

 

[180splitg3]

I have been looking at these cutthroat heads as well - for you guys shooting them - do you have any issues with them rusting in the quiver? That is one of the only negative things I have read about them...

 

[bsnedeker]

Yeah, you need to protect them with mineral oil or something similar. Carbon steel rusts in moisture, just the way it is.

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[180splitg3]

Got it. Can you coat them once or twice a season in the quiver and be OK or is it more than that? I have a buddy that will not shoot them because he doesn't want to have to worry about the blades rusting...

 

[bsnedeker]

I usually do it before I go on a trip, then hit them again if it rains.

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