Mech heads..how long to open?
02-09-2004, 10:05 AM
#11
Boone & Crockett
Join Date: Feb 2003
Location: Lehigh County PA USA
Posts: 12,157
RE: Mech heads..how long to open?
regardless of whether a mechanical broadhead opens on impact or during penetration, they must open to function as a broadhead.
(.....he reads the quote as he watches an exposed blade broadhead go planing off course....)
02-09-2004, 10:35 AM
#12
Giant Nontypical
Join Date: Feb 2003
Posts: 9,175
RE: Mech heads..how long to open?
The bottom line is: regardless of whether a mechanical broadhead opens on impact or during penetration, they must open to function as a broadhead.
02-09-2004, 12:49 PM
#14
Boone & Crockett
Join Date: Feb 2003
Location: Lehigh County PA USA
Posts: 12,157
RE: Mech heads..how long to open?
The bottom line is: regardless of whether a mechanical broadhead opens on impact or during penetration, they must open to function as a broadhead.
02-09-2004, 01:44 PM
#15
Giant Nontypical
Join Date: Feb 2003
Posts: 9,175
RE: Mech heads..how long to open?
..as he sits here watching his exposed blade broadheads spraying all over the target because the pro shop guy cut his aluminum arrows cock-eyed and the insert isn't seated correctly.....
02-09-2004, 02:37 PM
#17
Giant Nontypical
Join Date: Feb 2003
Location: Jackson, Missouri
Posts: 7,051
RE: Mech heads..how long to open?
Thought of something else to try to help, Greg.
Take a mech out and measure from where the point is closed up all the way like it would be flight. Now slowly push it forward, pulling the blades out as you push. How long does the shaft travel forward while leveraging your blades open? That would be your distance. But, keep in mind, while the blades are moved into a "trailing position," they are still left behind, so to speak, to cut at the beginning of the entrance hole. In other words, just because the ferrule has moved past the entrance point, the blades are now behind where they were and cutting back at the entrance point.
Of course, in this example, I'm using a rear-opening mech as an example, such as a Spitfire, Wasp, or Rocket.
That's what I'm sitting here trying to visualize; in reality, I've got to agree with Rack-Attack. All of my animals I've ever shot with Rockets have full-width entry holes -- including soft tissue matter like a turkey neck. That one was ugly!
Take a mech out and measure from where the point is closed up all the way like it would be flight. Now slowly push it forward, pulling the blades out as you push. How long does the shaft travel forward while leveraging your blades open? That would be your distance. But, keep in mind, while the blades are moved into a "trailing position," they are still left behind, so to speak, to cut at the beginning of the entrance hole. In other words, just because the ferrule has moved past the entrance point, the blades are now behind where they were and cutting back at the entrance point.
Of course, in this example, I'm using a rear-opening mech as an example, such as a Spitfire, Wasp, or Rocket.
That's what I'm sitting here trying to visualize; in reality, I've got to agree with Rack-Attack. All of my animals I've ever shot with Rockets have full-width entry holes -- including soft tissue matter like a turkey neck. That one was ugly!
02-09-2004, 06:15 PM
#20
Boone & Crockett
Join Date: Feb 2003
Location: Lehigh County PA USA
Posts: 12,157
RE: Mech heads..how long to open?
In which case the energy and momentum of the arrow shaft is not going to be directly behind the point of the mechanical head and that will limit it's penetration. And the guy at the pro shop should be hung by the gonads with his own bowstring.
I just love getting you going Arthur. You know how I really feel about this issue but it is nice to get the folks that are die-hard exposed blade shooters going when they get all serious about the heads they use....
