Bow speed and mechanical broadheads

I got the new pse dream season DNA for this season and I got spitfire maxx 100g broadheads should I worry about the blades breaking off (the bow is rated at 352 fps)

 

I don't think so. My friend shot a Mathews Monster for years. He was around 350fps and he never had any problems.

 

Nope. My buddy has a DNa for 2 years. Shoots a hunting arrow at 309 fps. IBO and hunting speed are not the same. Mathews is legendary for jacking up Ibo speed.

 

You should be fine.

I disagree.

 

The DNA has not been out for 2 years, although I agree there is no worry about the Spitfire Maxx.

 

You do know that just because the bow is rated for that, it doesn't mean that is what your bow will shoot. They test those bows at 30" DL and 70lbs draw with a 350 grain arrow and nothing on the string. Most hunting rigs with hunting weight arrows will shoot considerably slower than the bows rated IBO speed.

 

What does Mathews have to do with anything? I get it now. It's a chance to bash them.

SpitFires are just a solid as any replaceable blade BH.

 

Isn't the IBO a independant test? How can they manipulate that?

 

IBO is the standard at which tested bows are shot at 30" draw and 70lbs with a 350 grain arrow, or 5 grains per pound of draw weight. I don't know what you mean by manipulate it.

 

IBO has standards and the also have written into the rules 1/2" over on draw length and a certain % on weight. Not sure what that % is but, yes, it can be manipulated some.

 

Sorry the guy above talking about matthews jacking up IBO. Sounded a lot like he meant they were exaggerating it. Thats why I was confused because I was also under the impression that it is a standardized test.

 

Companies get the IBO by shooting 70 lbs. DW, 30" Draw length with a 350 grain arrow. 5 grains per pound basically at a 30" DL. Hope that helps some.

 

IBO (International Bowhunting Organization) rules are as followed:
30" draw length, 350 grain arrow and 70lb. +-2lb on weight and +-3/4" in draw weight. Generally tested at 70lb but, can go up to 82lb so long as the arrow weighs 5 grains per pound.

ATA (Archery Trade Association) rules are the same except the variables are much tighter. +-0.1lb on weight, +-1/4" on draw length. Can be tested only at 50, 60 and 70 pounds.

I was mistaken on the DL variable. It's been a while since I did my research.
Hope that helps.

 

To the OP, you don't have anything to worry about!