Trajectory of Arrow 20 pin @ 25 yds
07-18-2007, 01:43 PM
#14
Nontypical Buck
Join Date: Apr 2007
Location:
Posts: 1,438
RE: Trajectory of Arrow 20 pin @ 25 yds
Sometimes I shoot chip shots (10-15 yards), and I'm usually shooting about 3-4" high off
my 25 yard pin. I guess that is a rough indication of the "drop" for my setup.
One thing to remember is that at 10-15 yards, if you are 25 feet up, you might want to be
shooting a little high due to the entrance angle of the arrow.
07-18-2007, 01:47 PM
#15
Nontypical Buck
Join Date: Nov 2006
Location: Where the ducks don't come no more
Posts: 4,420
RE: Trajectory of Arrow 20 pin @ 25 yds
ORIGINAL: huntingson
I sight my bow in at 25 yards and call it my 30 yard and under pin. It shoots 2" low at 30 and 2" high at 25.
I sight my bow in at 25 yards and call it my 30 yard and under pin. It shoots 2" low at 30 and 2" high at 25.
I shoot feathers as well... which past 30 yards or so, start to drop your arrow pretty fast. I put the numbers in the target calc and my 25 yard pin, according to it is 10" low at 40 yards, which as I found out last evening, is about right. I never found the field point end, but picked up the nock and the back 10" of arrow... rest got ate by the fence.
07-18-2007, 02:59 PM
#17
Dominant Buck
Join Date: Feb 2003
Location: Blossvale, New York
Posts: 21,199
RE: Trajectory of Arrow 20 pin @ 25 yds
I'd double check what Quiksilver said. Double check your initial pin setting at 20 yards. That's a lot of drop for 5 additional yards at that range. Mine is a smidge over 3 shooting a 476 grain arrow at 260 fps.
07-18-2007, 03:05 PM
#18
Giant Nontypical
Join Date: Feb 2003
Location: HENDERSON KY USA
Posts: 6,634
RE: Trajectory of Arrow 20 pin @ 25 yds
ORIGINAL: quiksilver
Slower bows really give you no margin for error on yardage judging. This is where a speed demon is the difference between a kill and a bad hit (or whiff).
I'm sighted dead nuts at 20 (maybe a half-inch hot), and I have maybe 5" of drop at 35 yards. Then again, I am breaking allthe rules when it comes to speed.
Just from playing around with one pin, my trajectory looks like this
20 +.5
25 -.5
30 -2.5
35 -5
40 -8.5
That's with a 200 grain arrow and a 100 grainfield point- 70#, 29" draw, HCA Iron Mace (300 grain total weight). Arrow speed is in the neighborhood of 335-345 fps.
For hunting, I think I've settled on an 85 grain head, so that will flatten it out even more. (285 grain total weight)
Slower bows really give you no margin for error on yardage judging. This is where a speed demon is the difference between a kill and a bad hit (or whiff).
I'm sighted dead nuts at 20 (maybe a half-inch hot), and I have maybe 5" of drop at 35 yards. Then again, I am breaking allthe rules when it comes to speed.
Just from playing around with one pin, my trajectory looks like this
20 +.5
25 -.5
30 -2.5
35 -5
40 -8.5
That's with a 200 grain arrow and a 100 grainfield point- 70#, 29" draw, HCA Iron Mace (300 grain total weight). Arrow speed is in the neighborhood of 335-345 fps.
For hunting, I think I've settled on an 85 grain head, so that will flatten it out even more. (285 grain total weight)
Try a 400 grain arrow out of the bow at theexact same settings,so long as it is tuned and I think you will see the difference from your really light arrow to a more moderate arrow will be very minimal.
Atleast every time I have checked it,it has held true.
07-18-2007, 03:14 PM
#19
Giant Nontypical
Join Date: Feb 2003
Location: PA
Posts: 9,085
RE: Trajectory of Arrow 20 pin @ 25 yds
im shooting a 380gr arrow at 255-260fps. the backyard test shows about 2-4 inches of drop(i shot 2, 5 shot groups..and i wont lie im not shooting upto par today..dug lots of holes at work). the online chart shows 3.2. so id say its dang close...wish i had a BIG target...id run it clear to 40...i just dont need to be missing targets in my back yard...i got enough backstops..but i dont wanna take that chance...neighbors might not be happy when my arrow wizzes through my fence into theirs...
07-18-2007, 06:30 PM
#20
Nontypical Buck
Join Date: Nov 2006
Location: Where the ducks don't come no more
Posts: 4,420
RE: Trajectory of Arrow 20 pin @ 25 yds
Stat, Quik and Mauser inspired me to do my own test by their various contributive posts, so thank you to the three of ya.
Based on Quiks computer calc, here is what my 3D arrows should be doing with my speeds, and a (roughly) 25 yard pin.
20 = +1.67"
30 = -2.52
40 = -10.06"
50 = -20.96
Here are the actual results of my own test. Keep in mind I only did one. I ain't the greatest archer in Sherwood, but I do manage to hold my own. Apparently, my sights need a little bit of correcting to the right (see picture).....
I measured to the nearest 1/8th of an inch, using the center of the arrow as my guide. Again, this ain't the Discovery Channel.
~25 yard pin:
20 = +2.25"
30 = +1.38"
40 = -4.25"
50 = -11.13"
I think that the trajectory calc would be more accurate if it took in to accountthe weight of the arrow, plus what sort of fletching you are shooting. I am shooting straight/offset right feathers (4"), and my arrows weight right at 325gr.
Based on Quiks computer calc, here is what my 3D arrows should be doing with my speeds, and a (roughly) 25 yard pin.
20 = +1.67"
30 = -2.52
40 = -10.06"
50 = -20.96
Here are the actual results of my own test. Keep in mind I only did one. I ain't the greatest archer in Sherwood, but I do manage to hold my own. Apparently, my sights need a little bit of correcting to the right (see picture).....
I measured to the nearest 1/8th of an inch, using the center of the arrow as my guide. Again, this ain't the Discovery Channel.
~25 yard pin:
20 = +2.25"
30 = +1.38"
40 = -4.25"
50 = -11.13"
I think that the trajectory calc would be more accurate if it took in to accountthe weight of the arrow, plus what sort of fletching you are shooting. I am shooting straight/offset right feathers (4"), and my arrows weight right at 325gr.