Kinetic Energy and Mechanical Broadheads

The current bow set up that I have shoots 247 fps with 58 ft. lbs of kinetic energy. Is this enough K.E. to use mechanical broadheads like Rage or G5 T3 reliably? I have previously used fixed blades, however they are not tuning as well as I would like them to. Thanks!

 

No mechanicals for me at any amount of KE. Tune your bow. Find the correct spined arrow. Try a different BH, I like QAD Exodus. I found most BH flight issues come from poor grip.

I watched a show last night were a guy shot a deer at 20 yard with a Rage. It looked like it only penetrated 4-5". He even said "I didn't get much penetration but it was a perfect shot". Really? Perfect shot to me is pulling a blood covered arrow out of the ground. Of course they found the deer. It looked bloated like it was there for days.

 

I have nothing against people choosing to use mechanical broadheads but please don't use them as a cover up for a poorly tuned bow. It's possible that a poor tune will cause a mechanical to under perform even if it flies well.

My bow is shooting almost the same specs as yours and I was having trouble getting my broadheads to tune as well. A switch to a stiffer spine arrow solved the trouble for me.

 

I shot a similar set up a couple years ago. Mechanical broadheads did not deploy for me and I lost two deer as a result until a more experienced bow hunter clued me in. I would fix your tuning issue and stay with fixed blades. Look at slick tricks. It is a solid fixed blade head that required very little tuning. I recovered every deer since switching.


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You are on the edge for a mechanical. I shoot 60# @ 28.5" draw and wouldn't consider using a mechanical for anything but turkeys. Slicks are a consistent head for me, (as well as German Kinetics or Solids when I have a lot of extra spending money).

 

Thanks for the replies. It looks like I will stay with fixed blades. I will try re-tuning again and see what happens and then switch to a different broadhead.

 

What broadheads are you having trouble with?
What is your arrow spine?
How are the broadheads impacting in relationships to the field points?

 

I am using G5 strikers. The broadheads are impacting about 3.5-4 inches left of the field points. When I slightly adjust the rest, Both the field points and the broad heads move right equal amount. I am shooting Gold Tip 400s.

 

Don't know how much weight you are drawing but 400's are a very light shaft.
With my 60# draw weight @ 28.5" I shoot 340's and it seems to be a great combination.

 

Here are a couple suggestions that might help.

1. Try moving the rest in a smaller increment. Sometimes you can jump over the sweet spot and not know that anything was changed.

2. Give you limb bolts a series of 1/4 turns in. A left impact indicates a possible stiff arrow and a little more draw weight might fix it. (if your shooting a left handed bow, reverse this advice)

3. Have a bow shop check your cam timing and/or adjust your yolks.

 

I agree with elkguide. 400 is right on the line between 340 and 400 spine on the chart for a 60 lb bow.

However, with a right hand bow, left of the field point impact indicates a stiff arrow. This seems counter intuitive unless the op is left handed.

 

Yes. Really do need a little bit more info. I'm thinking that the cams might not be quite in time to be jumping/moving that much but then that is truly just a guess without more backround.

 

I am shooting a left handed bow. Would this indicate that I should try a stiffer arrow like a 340 spine?

 

Yes. Go to a 340 spine arrow. That's what fixed it for me anyway.

 

Some good advice here. My 10 cents: If you are right on the line when it comes to choosing your spine, I always tend to go with the stiffer option. I would go with 340's.

 

OK. A lefty so that does indicate a weak spine. As many have said, try some 340 spined arrows and I'm guessing that that will solve your issue.

 

If you want to test our advice without spending a large amount of money, I recommend the Beman white box arrows. They are 340 spine, cut to 29.5 inches and only run around $25 per box.

Walmart arrows in the 60-70 pound rating would work too.

 

I will try it thanks!

 

You could try Rage 50KE mechanicals. They deploy with 50lbs of KE hence the name.