How much KE is needed for mec broadheads?

Nicholal · 04-09-2005, 10:39 AM

I would like to try mechanical broadheads (Rockets or nap scorpions)and was wondering if they would work for me.

What is the minimum KE needed to use mechanical broadheads?

I have a 27 inch DL
65 lbs DW
28 inch carbon force 300"s
Shoot somewhere in the 250's - 260

I have been told that I do not have enough KE to make a pass through with mecanicals. Is this true? As I dont want to make a good shot turn bad by not using the proper broadheads.

Thanks
AL

TFOX · 04-09-2005, 05:19 PM

With Rocket Steelheads you will be picking your arrow up,no you will be pulling your arrow out of the ground on the otherside of the animal.

I would say that if choosing more aggresive heads you probably don't have enough ke but with the smaller cut heads with pathfinder style points you have more than enough.

Arthur P · 04-09-2005, 07:33 PM

Cautionary note: Make sure each and every blade on each and every head flops open on it's own when you remove the o-ring. I've had terrible luck with mechanicals because I have yet to get a set that actually functioned properly out of the box. Even the Rocket Steelheads I got were gummed up and wouldn't open correctly. I had to stone off some burrs around the screw holes before they'd act right. I've never used them for hunting, but, from the testing I did, if I were to use mechanicals it'd be the Steelheads.

dsheally · 04-09-2005, 10:52 PM

Honestly? I would be leary using mechanicals with your set up. What is your total
arrow weight?

5 shot · 04-10-2005, 06:17 AM

http://www.broadheadtests.com/MECHANICALVSFIXED.html
Start with my link. You may also want to check out a few other pages as they will provide you more insight into what your looking for. As a rule, with the heads you want to use I recommend at least 55 ft/lbs of KE to provide the best chance of complete penetration. Some heads require a lot more, while others a lot less.

Rick James · 04-10-2005, 11:41 AM

I have shot about 4 deer with my old setup, with the Vortex 100 grain 3x blade heads. I shot them on a easton epic 400 @29" leaving my PSE Polaris Express at around 230fps. They passed through every animal and broke shoulder blades on 2x of them.