RE: Cam and a half? Hoyt versus Mathews?
 

Well guys you might have to sit down for this one. My Mathews LX is set on 60 pounds, 30" draw, with a 29" 400 gr. ICS Hunter traveling at a blistering 297 fps. I would like to see what it would do with a whimpy little arrow set on 70 pounds! What was it I said about that pipe! kotklegg

RE: Cam and a half? Hoyt versus Mathews?
 

Sorry..Don' t believe it.

We have several up at the shop I work at. Haven' t seen anywhere close to that speed at that poundage, draw length and arrow weight.

I' ll be up there this weekend and run a test through our chrono.

RE: Cam and a half? Hoyt versus Mathews?
 

Your setup should be about 15fps slower than that.
If you are getting that kind of speed, you better hang on to that one!

I`m guessing your chrono is reading funny.

RE: Cam and a half? Hoyt versus Mathews?
 

I' m with Jeff and Big Country on this one.

I don' t think anyone is saying you are lying but that that there is a mistake somewhere.Maybe the scale is off,either with bow poundage or arrow weight.Maybe the chrono is a little spastic.Maybe the draw length isn' t correct.

Something definately doesn' t equate.

RE: Cam and a half? Hoyt versus Mathews?
 

Both Jeff and BC have hit this one, I have yet to see one that fast also.

Let' s run some numbers for the heck of it--

Advertised speed is always high with Mathews, but let' s go with it anyway for arguements' sake.. The LX is rated at 317fps @70lbs, 30" AMO drawlength, IBO legal arrow, (350 grains) with nothing on the string, AND 65% letoff.

Your setup is 60lbs, 30" AMO drawlength, with a 400 grain arrow.

That is 10lbs lighter draw weight, and 50 grains heavier arrow than the standard rating system with which they got the 317fps advertised speed.

If you multiply the 10 lbs draw weight differential times the standard 2-4 fps-per-lb you normally lose, this calculates out to 20-40 fps right off the top for a 10 lb differential in draw weight.

50 grains extra arrow weight divided by the standard 6 grains per foot of arrow speed calculates out to another loss of roughly 8 feet.

So, even if we run the numbers high for you, and deduct the minimum 20 fps for the 10lbs of poundage differential, and then deduct the 8 fps differential in arrow weight, That is a minimum of 28fps off of the advertised speed of 317fps, which would be right around 289fps AT 60lbs and running a 400 g arrow with nothing on the string. If we jack it up some to the 40fps deduction, that brings it down to 269fps. Split the difference and it is 279fps. All of these are more realistic figures for that bow at that configuration, and I' m not even counting the weight of add-ons to the string like loops, nocksets, and peeps.

Can' t see 297, no way. 279, yes. Maybe you mis-typed, and put the 9 before the 7?;)

Just my own thoughts, Pinwheel 12

RE: Cam and a half? Hoyt versus Mathews?
 

Ok the is taken out of a Bow Hunting magazine, not sure which as I have lost the cover lol ;)

" HOYT - All of Hoyt' s new line of bows are something to brag about with the introduction og Hoyt' s new Cam & 1/2 system, and the Razortech is leading the charge. As the name implies, the cam-and-a-half delivers all the tuning simplicity of a single-cam with all of the design advantages as a double-cam system. "

Not sure if ANY of that will help you, but it' s just a little more information about the Cam-and-a-half itself!

" No Timing: Both cams work together rather than independently so they are always in time.

Cam Symmetry: The top and bottom cam are symmetrical providing for level nock travel and perfect bow symmetry.

Extreme Speeds: The new Cam & 1/2 Performance System is faster than any bow we' ve every built (Their typo not mine, it really does say EVERY built) - in excess of 330 fps on particular models.

Low Vibration: The Cam & 1/2 design reduces vibration and is extremely smooth on draw and the release."

That was taken out of one of Hoyt' s adds for the RazorTech featuring the Cam & 1/2. Hope it helps?[:-]

RE: Cam and a half? Hoyt versus Mathews?
 

Mine wont get that at 60#' s.....But it did at 67 or 69..Pretty sure it was 67 with a 28 inch 2512 weighing 397...

RE: Cam and a half? Hoyt versus Mathews?
 

Now that sounds right.

BTW...2512`s? You hit every scoring line at once? I`d love to shoot those for 3-d, but I am too lazy to pull that kind of poundage all day.

RE: Cam and a half? Hoyt versus Mathews?
 

Sorry guys, I forgot to mention that my LX has an 80% Let-Off. So let me get this right once and for all. My Mathews LX has an 80% Let-Off, 30 inch draw, nothing but a peep on the string, 29 inch 400 gr. ICS Hunter, set on 60 pounds, and smoking at 297 feet per second. I guess if I set it up on the 65% Let- Off on 70 pounds, I would be getting around 320 fps. Is that about right? If you guys are right about this bow not shooting this fast, I WILL hang on to this one! I went back to the pro shop today to make sure it was right, and the owner said the machine wasn' t but 3 months old. I shot my LX through it again and it was 297 fps. So I guess I' ve got a one in a million LX' s. The owner of the Pro Shop seemed to think so too. Read it and weep guys, kotklegg

RE: Cam and a half? Hoyt versus Mathews?
 

Good deal man! You got a real racecar there.