Am I overspined

[Dry Creek]

I am currently shooting a Bear Grizzly 45 @ 28 drawing to 29, and shooting a 2117 cut to 30" with 145 up front. Would I be better off dropping down to a 2016 or a 2018?
Thanks

[Bill Carlsen]

I haven't shot aluminum for quite some time but all the shafts you mention are better suited for bows in the 55-60 range. I think 1816 shafts would be better but, since it's been a while I'de wait for the advise of others that still shoot them.

[Manitoba Stickflinger]

That 2016 should work!

[snag]

Is this a "new" Bear Grizz or an older model? If it is a newer model it would be better to shoot some 2018's. If it is an older model I'd drop down to the 2016's.
The 2018's have an equivalent spine of 67#.
The 2016's   "      "      "      " of 61#.
The 2117's   "      "      "      " of 81#.

I am thinking the 2117 is stiff. The 2016 should work good though with a little tuning, playing with length and front end weight.

Bisch

[Dry Creek]

It is a older Grizzly. I have some 2016's that I will played with today.
Thanks

[bigiron]

1916's might work better.

[jerseyboy]

yes 2016

[Shawn Leonard]

2016 would seem good, but as said above maybe even a 1916, you are close on spine. 1916 and a 125 grain head instead of 145 may do the trick. Shawn

[Overspined]

Nope, I am    :D

[Guru]

Originally posted by Bisch:
I am thinking the 2117 is stiff. The 2016 should work good though with a little tuning, playing with length and front end weight.

Bisch

I would think you need to leave them long with 145 up front.

[raghorn]

You didn't state and nobody asked.....how are the 2117 shooting for you? Are they wagging, porpising, sailing, flying sideways, hitting the bow?
The rules don't always apply. If they shoot good for you then great!

[donw]

simple rule of thumb:

the longer the shaft, the bigger id dia/wall thickness it needs.

[Dry Creek]

Originally posted by Overspined:
Nope, I am     :D  

Lol

[Dry Creek]

Originally posted by raghorn:
You didn't state and nobody asked.....how are the 2117 shooting for you? Are they wagging, porpising, sailing, flying sideways, hitting the bow?
The rules don't always apply. If they shoot good for you then great!

I thought were shooting pretty good, but the last few days I have been shooting longer distances and noticed some side to side action. When I bareshafted them back in the fall they were all I could get to shoot straight. The 2016's and 2018's kept showing weak. Thought maybe it was the long draw length,  but I'm still new at this.
Thanks for the help I hope to play with them some more later today.

[Dry Creek]

After playing around with them the 2016's cut 30.5" with 145 up front is shooting pretty good.
Next question.
Would you leave them long with 145 up front or go shorter and add more point weight?
Thanks

[T Lail]

I would go with the 2016...seem to work in a few set ups I know like yours...but as stated earlier, many set ups may work better.....