Arrow drop

[ncsaknech1ydh]

I have been trying different broadheads from 145 to 300 Grains total, just experimenting seeing how they all shoot, my question then is there a chart available anywhere showing the difference in drop when shooting a particular arrow with different weight broadheads? I am shooting full length carbon express 250's and suprisingly the heads from 145 up to around 250 grains are shooting great all out of the same bow with the same arrow. The bow in use is marked 47# @ 28" it is a 62" longbow. I am shooting around 60 pounds at my drawlengh. Anyway anyone know of any charts out there? Thanks for any input. DK.

[SEMO_HUNTER]

I don't know of any? It's always just been practice with the different weights and take notes. You probably won't notice much of a change in trajectory until you get out past 20 yards? That's just been my experience, unless you make a drastically heavy change like I did from cedar shafts to ash shafts where the ash is a whole lot heavier and less forgiving in my testing. I went back to the cedar shafts because they just seem to shoot better for me.
Almost everything shoots the same out of my bow as far as arrow drop from 0-20 yards then beyond that I can see a real difference in drop.

[reddogge]

There isn't due to too many variables.  Best thing to do is trial and error and record your results.

[Winterhawk1960]

Dang......what's your draw length ??? Even going the maximum of 3 lbs. per inch beyond 28" that is some "serious" length.

I doubt if there is any kind of chart showing "trajectory" because there can be (and is) waaaaaaaaaaaaaaaaaaaaaaaaaay to many variables to be considered. It just wouldn't be very accurate.

Winterhawk1960

[Swamp Yankee]

Not enough information to tell.  If you knew the speed of the arrows with various weights, it's a simple physics problem to calculate the drop.  Arrow speed at different weight varies with different bows, release technique etc though.  There is no "plug and chug" solution to the question that I know of.

[Bjorn]

145 to 250 is only about 100 grains difference and won't account for a noticeable drop in 20-25 yds. An arrow from a 60# bow coupled with a long draw like what is being described, will likely not drop much even if you could measure it- the difference in speed would only be 15 fps.

[Jeff Strubberg]

Roy Marlow has some charts on arrow trajectory and drop in his book Timeless Bowhunting.

As for bow weight at a given draw length, stack can get you there in a hurry.  I had a cheapo takedown recurve for a while that pulled 54 pounds at 28 inches and 71 pounds at 30 inches.

[ncsaknech1ydh]

Man Jeff, that is scary, I remember shooting chepo bows long ago that I have long scince departed with and can no longer of coarse measure the poundage at different lengths, but I will bet that was exactly the case!

I shoot alot of Bob Lee's now and with my Bow scale, they ring very true to about 3 pounds per inch anywhere from the marked 28" to my draw length which is about 32".

I will shoot at game to around 25 yards, but practice to around 45 to 50 yards and those longer distances are what I wonder about mostly as far as arrow drop goes.

The long distance part of my practice sessions really helps me on those closer shots. DK.