Post by bowtech on Jan 22, 2006 10:57:45 GMT -5
As you can see (in the above photo) , the heavier arrow holds only a nocks advantage over the other arrow which is 150grns. lighter.
The Momentum effect takes over (well out of hunting range) as the arrow (after reaching it's vertical apex) begins its downward flight and actually goes at a speed beyond what the arrow was launched at.
(I.E.: gravity @ 320fps)
But...for that nocks advantage , range estimation is more critical with the heavier arrow as it has more arch at any point and a greater fall rate.
My own BK2 super train can launch a 600gr. arrow only to 20 yrds. before that arrow will fall out of a 3" ring.
By contrast , the 300gr. arrow that I hunt with will keep an arrow in a 3" ring out to 36yrds. easily and always gets a pass through....even on very large game such a buffulo.
Therefore...I use only light weight shafts for my modern archery.
On the flip side!
;DFor traditional equipment this does not figure the same although the same facts still hold true,just to a lesser degree.
Because of the lesser stored energy of the trad. equipment,the vertical apex. occurs much sooner and a long shot (in practice) may occur closer to 30yrds. rather than 70-80yrds. with the BK2.
Since this is the case,there may be two ways of dealing with the problem of penetration at either end of the shot range.
Either two diffrent arrows may be carried or the diffrence between the two could be derived and applied to one shaft.
The more effective way would seem to be the splitting of the two weight classes although I do know some people who do carry two arrows, light and heavy.
Just some food for thought
