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cplgibson
09-11-2010, 01:28 PM
I am currently shooting a 2009 cheeta with nap apache rest. at 70 lbs with 29 1/2 draw.

My arrows are easton carbon raiders 50-70 (dicks brand) with 100 gr tips they weigh 405 gr total for FOC of 11.4 % at 287 FPS average

am considering switching to 125 grain tips, will be 13.6 FOC and slow it down to 283 fps average

any thoughts on if a 2.2 % change in FOC will improve accuracy

Destroyer
09-11-2010, 04:04 PM
I find more foc improves accuracy to a point. Not a big jump the 2.2% foc. Pretty easy to do, not so easy to see the result. :)

SonnyThomas
09-12-2010, 05:39 AM
I find more foc improves accuracy to a point. Not a big jump the 2.2% foc. Pretty easy to do, not so easy to see the result. :)

Destroyer has it pretty much nailed down. Generally, 10% is regarded as enough for fixed broadheads. Not familiar with your arrow, 125 grs is not really necessary. The weight of your arrow has enough to well get the job done on whitetails. I came up with 74 ft lbs. of KE. Acceptable ft lbs for Elk is 60.

Destroyer
09-12-2010, 05:59 PM
And if your spine is marginal, you might end up with worse accuracy going to 125 grain.


Not familiar with your arrow

What spine are they?

SonnyThomas
09-12-2010, 07:10 PM
And if your spine is marginal, you might end up with worse accuracy going to 125 grain.


Got to agree here too.

cplgibson
09-13-2010, 03:53 AM
not sure will check today know they are for 55 to 70 lbs?

RLW
09-13-2010, 06:34 AM
The arrows I am shooting right now have 10.4% FOC, and broadheads appear to fly well with my current set-up, but I am not comfortable with it.

Personally I like my arrows in the 12-14% FOC range. For me, broadheads seem to be more forgiving of my shooting errors, or tuning if it gets slightly off, when in that balance range.

That mention of spine is a concern......I won't be surprised if you find your current 55-70 arrow is a 400 spine.
On my next dozen, I think I will going to a 125gr head on mine, but to combat spine change, and since I have clearance to do so, I will also be cutting 1" off the arrow. Combined this should keep my spine very close to where it is and will bring my arrows close to 12.8% FOC where I feel more comfortable

Destroyer
09-17-2010, 08:04 PM
55-70 arrow is a 400 spine.

Could be, dick's is a bit light on the spec's of its arrows. I would have said too light for a 70# bow but carbons are amazing with spine, very tolerant. :)

cplgibson
09-18-2010, 08:42 AM
still trying to figure out the spine on these arrows. not listed on easton's web site.

Destroyer
09-18-2010, 10:36 PM
Was it called 55-75 or did it have '400' in the title?

cplgibson
09-19-2010, 04:50 PM
they are easton carbon raider 50-70 mine are 28 inches in lenght (not measuring nock or tip) believe they are 400 spine ? my son destroyed the boxes using them for nerf sword sheathes!

found little info on these on net believe they are dicks label from easton

this thread from AT confirms my thoughts on spine :
http://www.archerytalk.com/vb/showthread.php?t=1095892&page=1

thanks to all for all the great opinons!!
:)

Destroyer
09-19-2010, 06:43 PM
my son destroyed the boxes using them for nerf sword sheathes!

Good use lol! :D