NAP Nitrons are not the largest head but shoot well and leave a great exit hole. I usually shoot the NAP Crossfire's which spin, but I am not shooting super fast. I do know someone shooting around 310 that uses them and they fly well.

Side Note--Have you chronoed that bow with a hunting arrow yet? I know that the 82nd is fast but 340 fps? Make sure you are shooting a stiff enough spine, you might also need to look at your fletching combo to help with your arrow flight.

I use CX Maxima 350 3D selects with 4" feathers LW. I think they work very well. yes I have chronographed it (333fps). NOt hard to remember that. Haha.

I am still hung up on going witha mech head............the additional moving parts and the possibilityof failure drives me nuts.......[&:]plus, my bow is not a screamer......prolly 250-260 per second

On the HellRazor, is it less bulky than the thunder head.....how does it fly?

I shot 85 grain Montecs out of the Iron Mace last year - over 350 fps on the Speed Pro 5.5 shafts w/ gateway feathers.

They flew like darts, no problems.

I'd like to try the mechanicals, but I'm a little hesitant about the specter of them opening when I hit the trigger. Honestly, I don't know anyone else playing around at these speeds - and I'm not 100% convinced that the blades aren't flexing open when the arrow snaps out of the chute. I don't have a high speed camera to test it out... So...

They fly great!!!

My ROSS I used ladt year shot 240 FPS, I did try a rage and it blew right threw a doe. It was the biggest blood trail I have seen.
I also shot a doe with a montec that took 3 steps and died

I like the rage, I like the rage a lot. I am 60% sure I am going to used them.

Thanks Germ!

I'll have to do some thinking on this one. I like the results out of the Rage and I have seen devistating results from other mech heads.

It's just my luck that there would be failure when ole mossyback is 20 yards broadside [:@]

Oh yeah.......screw UM!

RR looks great in Maize and Blue[8D]

This is what I did.

I put a little non-scent oil on my Rage. I dipped it in water, froze it, then shot it. It opened I did the samething with out the oil, and it did not open.

Will I ever hunt in those conditions? Yes, I hunted in freezing rain last year with a rage. Guess what I found out. If there is no oil, they freeze[&:]

Half the battle is knowing what a BH will do. I also like to shoot Fixed heads in the wind

Great tips. Thanks.

That's what I'd be worried about with mechs at that kind of speed. Even one blade popping open on launch will throw it way off course. On the ones that use a rubber band to hold them closed, you might have to double band them. I know that Excalibur crossbows markets a head called the X-Act that uses internal clips to hold the blades closed. It's supposed to work on their high performance crossbows at 355 fps. I've never looked at 'em myself, but they might be worth a try if you decide to go that route.

If you do what you're supposed to and manually check each blade on each head to make sure they all move freely, there is no reason a mech won't open when it hits the animal. My problem with them is I've had to clean up and remove burrs and trash from at least one head in every package I ever bought just to make sure they all worked. I strongly suspect that is why there are so many stories about mechanical heads not opening. Boils down to poor quality control on part of the manufacturer and plain old fashioned operator error on part of the hunter.

All that said, I don't blame you for wanting to stick with fixed blade heads if you can. Problem is, to get the best possible broadhead flight and accuracy at that speed, you are going to need the highest quality arrows you can get - straightest and highest consistency in spine and weight - which also means expensive. And you are going to have to be downright anal about making sure there is absolutely no tip wobble when you spin them.

I think Tar and feathers fit him better.........[:-]

That's pretty interesting. Our winters are mild compared to what you get.What kind of oil? did you use?