arrow size

steammaker · 12-29-2007, 01:48 PM

Hey everyone.I have a Ross Cardiac set at 68# , 28.5 dl.I shoot 5575 Gold Tip w 100 gr fp/bh.I'm getting 271 fps.Would switching to a different arrow,such as a 340 Beman speed things up and still have enough spine?
I also use a whisker bicuit but I'm happy with that.Any thought on a different arrow would be appreciated.

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hoyt_user · 12-29-2007, 03:13 PM

ya if you switch to a different arrow size, like the 340 beman you arrow speed will speed up it might now be a whole bit of speed but it should !!

steammaker · 12-29-2007, 03:30 PM

THANKS KATERA,HEY ARE REALLY GETTING 320FPS OUT OF YOUR BOW?

childers · 12-29-2007, 05:33 PM

shoot axis 300's

steammaker · 12-30-2007, 11:03 AM

axis 300's?really what is your setup on your bow?i'm just worried about spine strength at 68#.but i'm fairly new to bow hunting with a compound and would like all info i can get before i throw down the money on new arrows. thanks

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BGfisher · 12-30-2007, 11:59 AM

Hate to be the bringer of bad tidings, but the arrows mentioned above will NOT be faster than what you now have. Each is approximately 1 gr/inch heavier than you are now shooting. The end result should be about a 10 fps loss in initial velocity.

The GT 5575 you are now shooting is about as light a spine (.400) that you can shoot at that length and weight. If you want a lighter arrow to gain more speed you could look at the GT Ultralite series. O their website click on Products, then Build Your Own Arrow. The Ultralite series is under the Target Arrow link. Work up your specs and see what you come up with. Personally I would work something up with the UL 300 or the UL 22 series. These should spine a little better for you.

There are lots of ways to get more speed. Consider that everything on the string is like having weight on an arrow. Try cleaning off the string of unneccessary accessories. Shorten the center serving to about 3". Got a tube-type peep? This costs you as much as 8 fps. Keep string silencers close to the cams to gain more. There are lots of little tricks, but the arrows mentioned are not part of it.

Rob/PA Bowyer · 12-30-2007, 05:59 PM

Good post BGF,

my question to the thread starter would be simply, WHY? Your shooting more than adequate speed.

Along with what BGf said, you could go to a light head which will stiffen your spine up a bit but again I ask why?

MOTOWNHONKEY · 12-30-2007, 06:54 PM

2 inch blazers will help a bit also if you are shooting the traditional 4 or 5 inch vanes. Don't fall into the speed trap. A hunting bow shooting 270 fps is packing a heck of a punch.

demoIL · 12-30-2007, 07:13 PM

There are lighter arrows that can be correctly spined for your setup but that is not saying that they are better for hunting.. Are you shooting this bow for 3-d target or is it a hunting setup.. If a hunting setup then I'd leave it alone, especailly if you shoot fixed blade broadheads...

steammaker · 12-31-2007, 11:06 AM

Thanks for all the great advise.I'm fairly new and still learning about arrow weight and other specs.I do like the way my bow shoots and i didn't have any trouble taking my 8 pt buck or doe with it.I guess i just got caught up in the speed factor.If it ain't broke,don't fix it.

Thanks again

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