I might have to try there test for its and wiggles
They did test 539 grain. closer to AMO and what I might use as a hunting arrow... my test will have to wait a while to much on the plate right now but I would like to check it out,,,
Speed Testing the GrizzlyStik Qarbon Nano all Carbon Longbow
IBO bow speeds are what everyone seems to compare these days. To calculate a bow's IBO speed you shoot a 350 grain arrow, from a 70# bow drawn 30”. This system is really set up for compounds and many recurve and longbows have historically been 70# bows @ 28" but drawn to 30". They just don't tell you that they're doing that. They're actually shooting a bow that's up to 8# heavier.
We don’t have any limbs that hit 70# @ 30” yet but we shot one of our Qarbon Nano carbon bows in 66", with a set of 54# bow at 28” and 59# at 30”.
So, at approximately 10# of bow weight under the required 70#, we're shooting at 237fps IBO speed. Not bad for a longbow!
For AMO speeds you shoot a 540 grain arrow from a bow that pulls 60# @ 30". Again, ours weighed 54# @ 28" and 59# @ 30". (This is weighed on a digital scale. As soon as I can get up to Jim Belcher's Sky Archery shop, I'll weigh these limbs on his USDA certified bow scale.)
The GrizzlyStik Qarbon Nano has an AMO speed right at 200 fps.
For this testing we used a Hooter Shooter set up with a mechanical release. The reason you see a varied number of shots taken is because once I got four in a row of the exact same speeds from the first arrow, we wanted four in a row of exactly the same result s for the others as well.
To us this proves that not only is the bow blazing fast, but it’s phenomenally consistent. (Even the variance was only one fps.)
Also very important to us is that since we didn’t doctor any of this, our customers should be able to get very similar speeds from the bows they buy from us. If they have a hooter shooter they should be able to match our speeds. Try that with most compounds on the market...
We know that speed is a yardstick that people use to compare bows, and that's OK. We designed a bow that casts heavy arrows hard, but we wanted more than that from this bow. The Qarbon Nano does it all amazingly well. It's light in the hand (around 2#) but the shock absorbs ion qualities of the carbon riser combined with the unique limb design virtually eliminates hand shock.
Win & Win makes their own foam for the limb cores, they make their own carbon too. That gives the Qarbon Nano a limb composition that no other longbow in the world has. The limbs are not only fast, they're consistent. They shoot the same shot after shot no matter where you are in the world. That's important to bowhunters who take their hunting seriously.
Tip to tip, this bow has been engineered for perfection. Experience longbow perfection today, stop in to your local archery shop and ask to test drive a GrizzlyStik Qarbon Nano.
Check out our GrizzlyStik Qarbon Nano speed testing data below:
Bow Weight Arrow Weight Speed
54# @28" 352 grains 217 fps
54# @28" 352 grains 217 fps
54# @28" 352 grains 217 fps
54# @28" 352 grains 217 fps
59# @ 30" 352 grains 237 fps
59# @ 30" 352 grains 236 fps
59# @ 30" 352 grains 237 fps
59# @ 30" 352 grains 237 fps
59# @ 30" 352 grains 237 fps
59# @ 30" 352 grains 237 fps
54# @28" 539 grains 183 fps
54# @28" 539 grains 184 fps
54# @28" 539 grains 184 fps
54# @28" 539 grains 184 fps
54# @28" 539 grains 184 fps
59# @ 30" 539 grains 199 fps
59# @ 30" 539 grains 200 fps
59# @ 30" 539 grains 200 fps
59# @ 30" 539 grains 199 fps
59# @ 30" 539 grains 200 fps
59# @ 30" 539 grains 200 fps
59# @ 30" 539 grains 200 fps
59# @ 30" 539 grains 200 fps
Here's a shot of the GrizzlyStik Qarbon Nano longbow unstrung. This bow was specifically designed to cast our heavy tapered GrizzlyStiks hard. It's all about momentum for us and when you shoot our GrizzlyStik arrows and Broadheads from this bow, you've got yourself one heavy hitting system!
