r***6
发帖数: 401 | 1 Dr. Ed Ashby has some extensive archery hunting research.
Here is the analysis on broadhead performance:
http://www.alaskabowhunting.com/Ashby-Broadhead-Performance-W15
Summary:
1. Many broadheads are too fragile, bending or breaking on impact, thus
limiting penetration.
2. Rigid single blade broadheads are the least prone to damage on impact.
3. The most lethal shot angle is with the animal quartering away from the
archer.
4. The least lethal shot angle is with the animal quartering towards the
archer and the shot hitting in the neck-shoulder junction area.
5. All multiblade broadheads offer insufficient penetration when heavy bone
is encountered.
6. Single blade broadheads penetrate significantly better than multiblade
broadheads in both soft and hard animal tissue.
7. Four and five blade heads penetrate better than three blade heads.
> 8. When a rib is hit on entrance, a single blade broadhead is almost twice
as likely to be lethal as 4, 5, and 6 blade heads and three times as likely
as three blade heads.
9. When heavy bone is encountered, a total arrow mass of at least 650 grains
, as well as a tough single blade broadhead, is required to achieve adequate
penetration.
10. A single blade broadhead is more than twice as likely to produce an exit
wound as a multiblade broadhead.
11. The degree of blood trail is dependent on the location of the hit and
the presence/absence of an exit wound, not the number of blades on the
broadhead.
12. When all shots are considered, the degree of wound inflicted (depth of
wound channel times the number of blades) by single blade broadheads is
equal to or greater than that inflicted by any multiblade broadheads.
13. No multiblade broadhead can reasonably be expected to penetrate even a
deer size animal when the hit is from the forward quartering angle and in
the area of the neck-shoulder junction.
14. The most important factor in achieving adequate penetration is a well
constructed single blade broadhead.
15. The second most important factor in achieving adequate penetration is
adequate arrow mass (a minimum mass of 650 grains is recommended).
16. Game animals have reflexes faster than even the very fastest of arrows.
No archer can guarantee where his arrow will strike an animal. I concur with
Horace Gore. In bowhunting, shot placement is, for practical purposes,
random. | c*******r
发帖数: 1243 | 2 强弓对于近处（30码以内），脆弱的动物，如鹿，来说multiple blade和single blade
的区别不是很大。但是如果距离较远，动物体积较大，这个研究还是有道理的。以前听
一老猎人说，他去猎elk都是用single fixed blade箭头，当时还不太理解，现在对照
这个研究报告，看来还是有道理的。
另外，动物面向猎手的姿势，即使有角度也是最难打，这个是事实。动物有反映很容易
错过心肺区，而且心肺从前面看有太多的保护，而且肉也较厚。 | f********4
发帖数: 955 | 3 single blade是说一体式的不能拆的吗？不明白为啥这样叫。箭头一般不都是3，4个
blade？最少也是两个blade？
blade
【在 c*******r 的大作中提到】
: 强弓对于近处（30码以内），脆弱的动物，如鹿，来说multiple blade和single blade
: 的区别不是很大。但是如果距离较远，动物体积较大，这个研究还是有道理的。以前听
: 一老猎人说，他去猎elk都是用single fixed blade箭头，当时还不太理解，现在对照
: 这个研究报告，看来还是有道理的。
: 另外，动物面向猎手的姿势，即使有角度也是最难打，这个是事实。动物有反映很容易
: 错过心肺区，而且心肺从前面看有太多的保护，而且肉也较厚。
| c*******r
发帖数: 1243 | 4 single blade其实就是一体的两个blade，为啥这么叫，我想可能因为想要表示一片铁
的概念吧。 |
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