croc2116

I want to try the new Grim Reaper Whitetail Special, but don't know if I have enough ft lbs of KE? I am shooting 65 lbs, 390 grain arrows including 100 grain head, 27.5" Draw length. I don't know what my speed is so I'm guessing 280 ft/sec. My bow is set at 65 lbs but maxes out at 70 lb's and the IBO speed is 330 ft/Sec. My question is how do I find out my speed without a chronograph and do I have enough power?

Thanks
croc2116

foxfire66

You have plenty of power. I won't shoot anything but the whitetail specials. They are an amazing brodhead

croc2116

Foxfire66 thanks for response. Which WS do you use razor cut or razor tip?

foxfire66

I've used both and I would say they are both equally as good. If I had to pick though, I'd say razor cuts.

croc2116

Thanks I can get razor cuts 40 % off, but not the tips.

Bigeclipse

Honestly...after everything I researched 60ke is really the bottom of the suggested amount for mechanicals...now this is subjective but it is what most will say. You have about 65ke. The whitetail special is a 2inch cutting blade which is quite large...one of the largest. I would want to be pushing more like 75+KE to shoot those, but you will probably be ok for DEER and broadside ONLY shots with little quarting. Personally, id go for the regular reapers 1 3/8ths by 3 blades which is still an awesome CUT and does lots of damage with little to NO fear of penetration issues. ALSO NOTE that the RAZOR Cuts have showed issues with the tips bending...not sure if they fixed that but the RAZOR tips show no issues so I prefer the razor tips. Just my two cents.

croc2116

thanks Bigeclipse

Bigeclipse

By the way you could always go with the 1 3/4 for something in between the 1 3/8th and 2 inch cutting...or if you are set on using the 2 inchers...id crank your bow up to 70lbs if you can handle it and still shoot accurate. by the way...most bows max a few pounds over their top...so in your case your bow would probably max out at 72ish pounds if you have 70lb limbs. So...you could potentially increase your draw weight by like 7 pounds giving you even more KE/momentum in your arrows and then I wouldnt be to worried about penetration on deer with the 2 inch whitetail specials.

doetrain

Shot my first Doe last year with the 2" Grim Reapers at 65 pounds and PSE carbon arrows and got 90% penetration after slicing through a rib. It was a tough angle with her quartering towards me at 12 yards but she only went about 45 to 50 yards. Blood trail in the dark in grass was good.

Bigeclipse

What draw length are you? Everyone forgets that 1 inch of draw length equates to about 10fps of speed which is similar to 5 pounds of draw weight. So someone with 70lb bow but 27inch draw is similar to 60lb bow with a 29inch draw as long as the bows are similar in IBO speeds.

Also, if you ONLY hit rib and no shoulder bones or leg bones, and you were relatively close to the deer i.e. 35 yards or less...90% penetration is NOT good in my opinion. You should get complete pass throughs at 30yards or less only going through ribs. Either way, you recovered the deer which is GREAT. As stated shot placement will ALWAYS kill a deer even if using a field point. Dont get me wrong I like mechanicals, but id go with the smaller 1 3/8ths for greater penetration or up your KE with greater draw weight.