NAP double Cross rear blades not opening

Hello,
I was wondering if anyone is having issues with the bleeder blades not opening on these new double cross broad heads? I have shot a doe and a buck with these and the rear blades have not deployed in either case. It seems they are very stiff and locked in tight. I made good shots on both animals and thankfully I recovered them. I am shooting 65lbs. Maybe I received a batch where the screws were too tight? I put some silicone on a new one and it seems to move a bit better now. Just wondering if anyone else is having these issues?

 

How do you know they aren't opening?

I've had nothing but great luck with them.

 

Like Matt (Rick) said, how do you know they didn't open? If they're closed when you recover the broadhead that doesn't mean much. Take a look at the ferrule where the blade makes contact when it's open. You'll most likely see the ferrule has marks on it where the blades slammed open on impact. I've shot a dozen or so of these heads into targets and animals and never had one not open.

 

Sorry for the crappy cell phone pic but hopefully you can see what I'm talking about here. The base of where the blade meets the ferrule comes new from the factory with a clean 90 degree angle. After the blade slams into the aluminum it mars & bends that a little bit. You can see how this one is angled back and there's a little burr starting to form. That's a clear indication the bleeders are opening.

 

I shot 1 buck and 1 tree with them. I promise you at least 1 bleeder blade did not deploy both times. The buck was a shoulder shot that penetrated maybe 2", and then one of the bleeder blades snapped off. The arrow popped out after 3-4 bounds and that second blade definitely not deploy. It is my suspicion that the blade that snapped did not deploy also.

When you look at the head and think about the physics involved, if you hit bone on a downward trajectory it is very possible if not likely that the rear deploy blade could and likely would get pinned to the ferrule. That's 100% sure exactly what happened on the tree shot.

 

I'm think of switching to them especially after the shot Justin put on a Doe that was a little low might not have found it with a fixed head

 

Two different deer I shot with them. The first two pics it's obvious the head deployed fully. the second deer is a buck I shot. Looks to me the head didn't work like it should. Entered behind shoulder and come out through opposite shoulder.

 

I had the same thing happen. I know the rear 'bleeders' didn't open because it took a fair amount of pull for me to open them up after I recovered my broad head. Once it was opened there was no blood, hair or anything inside that would indicate to me that these opened at all. Is there something I can do to loosen these up for the next time?

Disclaimer: I don't mean to sound like a complainer, the broad head did it's job and put meat in my freezer. I am just hoping that there's something I can do to make sure they deploy next time around.

 

I can't say I've ever personally seen this happen, but I suppose it's not impossible. I'll check w/the guys at NAP and see what they say.

 

I hate to be captain obvious but why is this a surprise? When you take a very simple thing like a broadhead head and for no practical reason you make it twice a complicated as it needs to be, Add mechanisms that it doesn't have to have. And then double or triple the parts and pieces, mostly for the cool look factor . And then when something doesn't function because of all the unneeded and unnecessary mess we are surprised? I think a reality check is in order.

 

I'm guessing you're not an engineer?

 

When you have this many moving parts it's bound to be tough to find that sweet spot where everything opens when it should as it should and not a moment too soon or too late. I think they rushed these onto market when the release of the Hammerknockers went sideways. When they work as intended they obviously put huge holes in deer. But a lot of the time they end up turning into Slingblades that tend to open up in my quiver or even worse in flight. No thanks.

 

Or a Marketing Specialist?

 

Kind of like the modern compound bow? Or a release?

 

Yes because marketing trumps efficiency and reliability of design. That's a real responsible and ethical business model.

 

Instead of staying with a proven design of product. Lets change it. And claim it's better than the previous model.

 

You guys crack me up.

 

Nothing better than a broadhead thread on a Thursday!

sent from my mini hand held phone

 

My hypothesis ***checks google*** is that the main blades create a wound channel so large that there may not be enough friction/force on bleeder tabs to open the bleeder blades.

 

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