cut past center shelf/ shaft ??

[Chaz]

Got my new Mahaska Flat bow and Kent who is awesome[bowyer] told me that it is cut just a bit past center. It is 44# @ 28"" and I  draw 28". I would like to shoot a heavy carbon out of it . Any recommendations ? Thanks !

[njloco]

I would try and get a combo of different spined shafts and see what the bow likes. I think they do sell the shafts this way or go on the for sale and put in a Want To Buy add ( WTB ).

Good luck.

[Doc Nock]

A bowyer I found had good tuning advice once told me that if you shoot the bow at center or beyond center, you'd better have a great release, cause the arrow's not sure which way to paradox coming off the string with finger release.

Made sense.

As it sits, you'll have to spine well above 65#. Center shot requires a stiffer shaft to take all that energy kickin it in the kiester at release.

As you move away from center toward shy of center, you need a weaker shaft.

Good thing is that at center, you can pick what shaft you want in the .400 range likely and add point weight or shim out the sideplate to get it to fly with whatever head you choose.

My Morrison was 3/16 past center and with 45# carbon/fc limbs, I'm shooting a GT .400 with 100 gr. brass insert, 3" 2117 over foot, 200 gr. point and 3" 4 fletch.

To do so, I shimmed out the sideplate to 1/16 shy of center and got to add more front weight.

Still at 600 gr. total. FWIW

[Friend]

Possible consideration:

Estimate --Arrow... Victory HV400(6.2 gpi)...29.5"...3x4" shield cut...100 gn insert...300 gn tip...600 gn total...32% Ultra EFOC.

[Chaz]

good thoughts to consider as i'm shooting a 5oo spine now and its acting a bit weak- I'll try a 400 spine-- will 150 g.s upfront be enough  cut at 30" ?

[Friend]

'Possibly shooting here from 10 yards above my effective range'

Your initial post stated that you wished to shoot a heavy carbon arrow. Typically, my take on a heavy arrow is >12 gpp.

The total arrow wt for your most recent proposed starting point, using an ICS 400 for example, would be ~435 gns at just under 10 gpp. What total wt arrow range are you looking for?

IMO, utilizing a 150 gn tip on a 400 spined arrow will be far too stiff for your set-up.

Note: Try a 200 gn, 250 gn and 300 gn pt on your 500 shaft.
      The results may prove beneficial and enlightening.

[Chaz]

as of right now my arrow weight is 440 grains - 35/55 GT with 150gn head. My arrows are hitting right of target[weak right?]

[Doc Nock]

Chaz,

Rather than have all of us share our individual data, what about you go here and see what you think and then work up your own?

Might save some time and teach you a lot on this one:   http://bowmaker.net/index2.htm

click on the tab Bow Tuning. Good luck & have fun!

[Chaz]

great link - thanks !

[metsastaja]

Great advice Doc.