Can someone please explain to me how people shoot 185 fps

[laddy]

I had BW target bow that was 42lbs. The fellow I sold it to had a 29'' draw, with it he shot 6 arrows through a chronograph and every arrow was 200- 204 fps.  the arrows were 1916s, I do not know if the chrono was accurate, but it said my Schulz longbow was faster with heavier arrows. the numbers could have all been off, but using it for making a comparison should have some merit.  However, I am not so sure that at 25 yards the trajectory of bows that are 10 or 15 fps different is all that much to consider. My favorite bow these days, is considerably lighter and slower  and just as deadly on deer.

[ROB TAYLOR]

My DAS, with Samick Extreme longs, set up at 55# at my (also) 29 1/2" draw, shooting a 550 grain arrow...that's 10 gpp...will do 190 even, if I do my part (release).  I can drag it down by 6-8 fps if I don't pay attention to expansion and release.

My chrono is not subject to the same failings most of those $99 shootin chrony and other junk is...I have infrared screens on a CED chrono...best bang for the buck in accurate chronographs out there IMHO.  That's said having shot lots of the other cheaper brands to my frustration point on several occasions.  The CED is a few hundred, but not too bad.

-Rob

[ROB TAYLOR]

The above post has a typo...instead of just editing it, I wanted to correct it here.  It should read that the DAS will do 180 at 10 gpp at 29 1/2" DL.  NOT 190...

I did some testing at 28" and 29" AMO tonight as well at 10 gpp.  28" produced 170ish (I was trying to draw to a mark on the shaft to the center of the plunger, so there may be a little error..LOL) and the 29" draw produced (predictably) an average of about 176.

Hope these numbers make more sense to folks.  Also, this is shot with an Angel Majesty string with 6 little (1 inchers, maybe) puffs in the string....two at the contact point, and one each at the 1/4 and 1/3 points.

-Rob

[j.j.johnston]

I took a couple of my bows to the archery shop to run through the chrony just for grins.  I draw 30" to the front of the riser so I think that is about 29AMO,  All 4 bows shooting the same arrow. 450 total wgt goldtip  
ACS 54@28......201
Morrison shawnee w/copperhead skins, 57@28...200 even
Border ultra w?foam hexV, 55@28......202
Robertson prergrine, 60@29......184
With 502 gr goldtip arrow
ACS ....189
Morrison....188
Border....189
peregrine....179

I am posting these as a comparison, not intended as a scientific study

[GroundHunter]

How do you shoot 185 fps? Balamce the arrow weight to the draw weight, and most modern trad bows will go 185 fps or more at 9 Gr. of arrow weight per pound of draw weight, 'cause that is what everyone is designing and building for.

Whether you want, or need, to shoot 185 fps, more or less, is a matter of what you are trying to do. More speed for flatter trajectory, less for quieter shooting.

In my hinting experience with whitetail deer, a 50# bow with a 450-525 gr arrow going 160-185 fps kills 'em fine. As does my 73# bow shooting a 675 gr arrow at 185 fps.

I like all the speed I can get as long as its QUIET. As you get over 200 FPS most bows make much more noise which will make a whitetail jump the string, spoiling the best accuracy you can muster. That flat-shooting arrow is no longer heading for the kill zone, 'cause the kill zone has moved.

So, it's back to shooting the heaviest arrow you can shoot accurately - it will be the quietest, and if you hit what you are shooting at, it should kill it fine (for non-dangerous game).