"This is my 64"/45#@28" Border Hawk R/D Hybrid Longbow...There is no glass in this bow as it's limbs are UDCF on both the back and belly of bamboo lams with a tapered Shedua core...The Arrows are 680gr/15.1gpp Hard Rock Maple Shafts from Kevin Forrester which are moving at 140fps off a 14-strand string of D97 from Allan Shaffer at Ten-Ring Strings."
That's quiet Jinks. Very sensitive mike on your camera. Especially when you do the the comparative feather flick. Them Borders do love and cast a heavy arrow. IMO, the Border bows were made with the hunter in mind. Not intentionally, just the way it turns out. Thanks brother.
Your mike is in a bad position to realize how quiet the bow is. Better you would have it about fifteen yards away where a deer would be. I can easily hear the shot but I'm sure that's how you have the camera set so close. Put it at the target, then we can better hear, or not hear it. My bows seem every bit as quiet as that bow so may be the close mic.
Wouldn't be surprised George if your bows are as quiet. Think you're comparing apples and kiwis. You may not have carbon in your limbs. Second thought, I'd love to hear a side by side with one of your oldies. Them arrows suck up lots of energy and noise.
GDS...the problem with setting the video up at distance is that the audio has sound balancing software built into just about all smartphone recorders where close/loud noises are muted while distant/faint sounds are amplified.
I mentioned in the video that the biggest difference made in quieting this Hawk down was the heavy arrow but?...not many bows throw 15.1gpp 140fps and it's the energy stored in this bow that makes it so loud with medium and lightweight arrows but nick up a 680gr Hard Rock Maple shaft?...and death becomes a whisper on it's lips. ;)
swampkiller, I don't have a bow with carbon in the limbs since all mine are pre 1980's bows. To me that's neither here nor there...nor apples and kiwis. Noise is relevant to the use of the bow no matter what the bow is made of. And frankly, I think folks worry too much about it in real life. I want to know what it sounds like as it approaches its target. Don't want to derail Bill's thread...it is very informative. And kudos to jinkster for the metaphorical poetics. ;)
I'm kind of slow this morning, but it seems like, despite the impressive speed with a very heavy arrow, it will still not have the cast (especially beyond 20 yards) that an average bow would have shooting 10GPP. If you shoot a lighter arrow with this bow, the cast will improve (probably a lot), but with a good bit more noise. Please let me know if I'm wrong. - John
Not surprised, like others, that the bow is quiet at over 15 gpp.
I would not characterize the 140 fps three feet from the bow as "momentum" but more as an impressive high initial velocity that will inevitably fade fast due to lack of momentum, so I'm in the same camp as Fisher Cat except for the bow potentially being noisier with lighter arrows.
Light arrows are not necessarily louder...I have recurve bows that are whisper quiet shooting 8-9 gpp...as we know it's about proper brace and tuning...then add silencing measures judicially so as to not overload the string with excessive crap.
I am always more interested in what the arrow is doing 30 metres downrange in terms of trajectory on a target shot or how far it casts on a "flight" shot.
411: I don't think Borders offers their "Hawk" R/D Longbow anymore but the Border Hawk did break and set some new world flight records (in it's class) at Bonneville Salt Flats back in 2010.
I don't cite the above to boast but more to help others understand (and maybe even appreciate) what it is I've achieved here because while I myself found it very easy to get bows that don't store quite as much energy "Deadly Quiet"?...when bows store class leading energy?...they can be quite the challenge to get quiet and in that?...I'm proud of what I accomplished with this Hawk of mine.
Pdiddly: I loved your idea of capturing downrange velocity as I've often times cited how the heavy arrows off my Covert Hunter seem to carry real well at diatances of 30yds and less and I contribute that too the momentum of the heavy arrow overcoming the drag of it's own fletching far easier than a lighter arrow does. (which start out a ball of fire but then plummet towards earth once past 25yds or so)
Anyways?...I tried...but alas?...the overcast skies gave me error after error reading with arrows passing cleanly over my chrono but erring out and failing to give me a reading...guess I'm just going to have to wait for a sunny day but meanwhile?...this was my last attempt and ended my evenings efforts but was so commical I just had to upload the vid and share...
"Jinksters Lucky Chronograph Error"
At least you can hear the bow...see the flight and?...hear my stryofoam block get whacked (sounded like a .22 going off)...these arrows hit hard! ;)