I'm getting back into traditional archery after shooting a compound for the last 15 years. I have looked at arrow charts but each one recommends a different size arrow. I will be shooting a 50# bear Kodiak at 28" draw. I figure 29" arrow with a 125 grain head. Any recommendations on what size aluminum arrow would be best to use? I'm very experienced with tuning compounds but I'm a little lost when it comes to setting up and tuning traditional bows. Thanks

What dimension are you referring to?

Length? Spine?

I shoot a 45# @ 28" recurve with D97 string and use 29" (shaft) Easton xx75 2114 superlites with 125 grain tips with good success.

I was a little overspined to begin with with the 100 grain heads, but the 125s evened it out nicely.

I think anything from 1916 with 100 grns or 2013/2100 range with heavier tips will work.

See if you can go to a range and test a few out, your outfitter might have some different weights available for you to try before you decide what to use.

I'm referring to spine. I have had charts go from 2018 to 2117. I just want to get the right spine . Hopefully the archery shop will allow me to try a few sizes through paper to see which one shoots the best.

I wouldn't even worry too much about the paper right off the bat.

Just see if you can get a decent group out of them... also, if you haven't been shooting traditional in some time, your form is going to contribute to your accuracy more than the arrow spine.

I would say that over-spined is better than under, in that you can just put a heavier tip on there and it seems to fix the problem of random fliers.

However, when I considered my arrows to be "over-spined" (remember, 2114 on a 45# bow) I was still doing ok. Once I added the 125 grn tip vs. the 100 grn tip, my groups did tighten up a bit.

So, I would say your 2018 is going to get you pretty close to where you need be. But again, see if you can shoot a few different ones... if I had to do it again, I probably would have gone with the 1916's with 100 grn tips for my bow and may pick some up down the road.

You'll probably want a 2016, and to read this:

http://veraxservice.net/arch/tuning.htm

Its a good guide to get you started on the basics of tuning stickbows.

That was a good read. Thanks

been there done that, a 1916 with 125-145 grain point will work quite nicely.
I have the pleasure of having many varied spines of aluminum arrows to work with for the folks buying & tuning in this area & it really is suprising at what a 2016 or a 1916 will cover just by changing point weights.