Trad Gang

Main Boards => PowWow => Topic started by: bigcountry on July 27, 2007, 10:10:00 AM

Title: Anyone Chrono thier bows?
Post by: bigcountry on July 27, 2007, 10:10:00 AM
What do you think of my speeds?  This is out of a martin savannah 50# with a FF string 29" draw  I would like to know how others with 50# recurves fair.

Savannah Longbow
590gr 2018 with 175gr tip 159fps
560gr 2018 with 145gr tip 164fps
500gr 2016 with 125gr tip 175fps
Title: Re: Anyone Chrono thier bows?
Post by: RamiusEng on July 27, 2007, 11:24:00 AM
I have never been able to throw my bow that fast...   :knothead:

That said...looks like at 9 gpp..you will be in the   180's.  The numbers look great, IMHO.
Title: Re: Anyone Chrono thier bows?
Post by: beachbowhunter on July 27, 2007, 12:13:00 PM
Is your bow 50# at your 29" draw?  In any case, those are very respectable numbers.
Title: Re: Anyone Chrono thier bows?
Post by: James Wrenn on July 27, 2007, 12:29:00 PM
I crono every bow I pick up.Can even tell you how fast my bowfishing bows shoot fish arrows.  :D

They are decent numbers and are simular to a large number of other bows I have shot.
Title: Re: Anyone Chrono thier bows?
Post by: firstlightbows on July 27, 2007, 12:46:00 PM
Those look about right, I cronoed a savannah  55# bow at gander mnt and it was doing around 182-185fps.  My 50# with the same arrow as doing the same speeds :0
Title: Re: Anyone Chrono thier bows?
Post by: bigcountry on July 27, 2007, 01:07:00 PM
Thanks guys.  I just wanted to know if I was there or not.
Title: Re: Anyone Chrono thier bows?
Post by: rt2bowhunter on July 27, 2007, 01:36:00 PM
490gr axis
Palmer 50@29 180 to 183
RER take down 50@28 185 to 187
I draw 27 3/4"
Title: Re: Anyone Chrono thier bows?
Post by: Dave2old on July 27, 2007, 07:13:00 PM
Just chrono'd my latest boo-backed osage r/d longbow today, 50lbs with 700-grain arrows ... a whopping 132 fps. But it sounds fast! Maybe God should never have created chronographs, to bust the amateur bowmaker's dreams. It's 67" now and I plan to whack it down until it shoots those heavy sticks at least 140 fps, which will meet Dr. Ashby's mins for heavy (scapula) bone-breaking. If it breaks, well, I get to build another one.
Title: Re: Anyone Chrono thier bows?
Post by: Barney on July 27, 2007, 09:11:00 PM
Never have, probably never will. Don't care how fast it shoots, just where it shoots.   :thumbsup:
Title: Re: Anyone Chrono thier bows?
Post by: Richie Nell on July 27, 2007, 09:20:00 PM
I chronographed my Black Widow PSAX Osage 64#@29 with 605 grain arrow w/200 field point.  It shot 180 fps.  I thought that maybe a little slow.  My hunting arrow will be 810 grains with 271 up front.  I would like to think it would shoot around 160ish fps.  I am not gonna let the elk know one way or the other.
Title: Re: Anyone Chrono thier bows?
Post by: bigcountry on July 27, 2007, 10:22:00 PM
Goodness Richie, I imagine that combo should blow thru an elk fairly easy.
Title: Re: Anyone Chrono thier bows?
Post by: stick flipper on July 28, 2007, 01:37:00 AM
my ancient spirtis thunderhawk smokes an arrow. I never really cared how fast my bows were, but I noticed my arrows seemed to be flying like rockets with this bow. So I took it to a local archery store and shot thru their chrono. I averaged 179fps with a 705gr chundoo arrow. We then but my bow on the scale to see exactly what I was drawing it to. 64#@31. I shoot full length chundoo arrows and they come out a little over 31" bop. I draw to the point my BH touches the front of the shelf
Title: Re: Anyone Chrono thier bows?
Post by: R H Clark on July 28, 2007, 01:47:00 AM
I shoot a Dalaa 52 lbs at 29 in. My 376 grn arrow is 212 fps. I'll be adding a 62 grn weight tube to hunt whitetails.
Title: Re: Anyone Chrono thier bows?
Post by: MrBadExample on July 28, 2007, 03:04:00 AM
Martin X-200
50# @ 28"
26.5" draw length
shooting 450 grain Grizzly Sitka's @ 167 fps
Title: Re: Anyone Chrono thier bows?
Post by: sswv on July 28, 2007, 06:13:00 AM
just did a friends Black Widow SA and it surprised us both.

53# @ 28"s
27 3/4" draw
455 grain Gold Tips
average 201 fps
Title: Re: Anyone Chrono thier bows?
Post by: Shawn Leonard on July 28, 2007, 08:35:00 AM
R-H that is less than 7gpp, no wonder it is quick. Shawn
Title: Re: Anyone Chrono thier bows?
Post by: R H Clark on July 28, 2007, 10:18:00 AM
Shawn,that is my 3D set up.I'll shoot a mid 400 grn with a 4 blade Stinger to hunt.Thoes ILF limbs can take a lot of abuse.
Title: Re: Anyone Chrono thier bows?
Post by: LazerRay on July 28, 2007, 12:26:00 PM
My BW PSA shoots a 580gr between 187 and 190fps it 54@27
Title: Re: Anyone Chrono thier bows?
Post by: joe skipp on July 28, 2007, 06:00:00 PM
Don't care how fast it shoots as long as my arrows come off clean and penetrates well. I've killed quite a few animals, pass throughs with a bow that shot 170 fps...from 25 yds and under. Hit the vitals with a well placed arrow, and HE won't know if the bow shot 200 fps or 175 fps.
Title: Re: Anyone Chrono thier bows?
Post by: Dave2old on July 28, 2007, 06:47:00 PM
A bit off-topic, but interesting nonetheless. My latest boo-backed osage r/d longbow, 50# @ 28"; 66.5" ntn, shot 700 grain maple arrows at a disappointing 132 fps. I'm trying to get Dr. Ashby's min's for heavy bone-breaking arrows, which would require, bare minimum, 700gr x 140fps. So I cut 1.5" off the bow and got it up to 55lbs ... but the speed stayed the same. On reflection, the original/66.5" bow used a fast flight string, while the cut-down 55-pounder uses a linen string (I build a lot of bows and have a couple-dozen strings-in-waiting, and use the one that's the right length for the bow.

Bottom line: In this case, ff vs. linen is worth 5 pounds of bow weight. I intend to get a ff for the shorter length to see if this bears out. Fast-flight is evolving as my One Big Exception to an otherwise purist trad bowyer. Sorry for the side trail .... dave
Title: Re: Anyone Chrono thier bows?
Post by: snag on July 28, 2007, 07:52:00 PM
Blacktail TD recurve,D97 string, 55#@28", 29" GT 5575 carbons=185fps.  I don't remember the arrow weight. I believe it was around 520gr. I say this because I try and stay around 10gpp. When I am target shooting. I have gone heavier for hunting.
Title: Re: Anyone Chrono thier bows?
Post by: peter c iacavazzi on July 28, 2007, 09:45:00 PM
Dave,

What broadhead are you planning to shoot out of that set up?

Peter
Title: Re: Anyone Chrono thier bows?
Post by: ChristopherO on July 28, 2007, 09:59:00 PM
Pulled out the Chrony this evening to see the speed of the GT Hunters 35/55 arrows from the Martin Pioneer 50# @ 28".  These arrows are full length of 30".  Tipped with 125 grain field tips, an old wasp 3 blade broadhead and a 2 blade bh.  The test consisted of inserting 2 weedeater strands in a tube that gave it just over 100 grains extra weight and shooting them through the chrony.  This put them at nearly 520 grains.  At my draw length of 28"+ the heavy arrows shot in the low 160's with the fieldtips and BH's.
Removing the strands set them back to just a tad over 400 grains or 8 grains per pound of draw weight.  Their clocked speed was in the mid 170's or 12 - 15 fps faster than the weighted shafts.  
My observations were interesting:  The unmodified arrows had more FOC balance by at least an inch than those with the full length weight.  And the BH's shot better without the weight than with it.  
Anyone else have this type of experience?
At this point I will hunt lighter and make sure the edges are super sharp.
Title: Re: Anyone Chrono thier bows?
Post by: steveinpa on July 29, 2007, 02:13:00 PM
40# Savannah chrono'd last year at Denton Hill was 146.  Forget the arrow weight, somewhere @ 9 or 10 gpi.