Hello all, I spent some time looking around and I'm not sure if this is the proper forum for this but I had a few questions about arrow choice. With a 45-50# pull recurve, would a 400 or 500 spine work better? Thanks ahead of time and I apologize if this isn't in the right forum.

I would say 500 (carbon) given a 28 inch draw

Thank you for the quick response, my draw length is between  28" and 29".

Impossible to answer! Not enough information.

Make, model, riser design, tip weight you plan on using!

Welcome newbie77.

I agree with the 500s. If you're drawing 28-29 I would not go shorter than 30" arrows and tune from there with point weight and factory inserts.

My brother-inlaw shoots a Martin X-200 45#@28 and shoots 5575 which are .400 with 175 grains up front, he draws 28" on the nose.

So y'all tell me how you can come to such a quick conclusion, I'm all ears!

Mid 70's 50@28 Super Grizzly here drawing just short of 28" shooting 30.5" 3555s with 175gr points and factory inserts. 5" RW shields. I am quite comfortable advising to go with the 500s. It's easier to build out his shelf material if underspined than make a too heavily spined shaft perform weaker.

500 like the others said.

I'm shooting the Samick sage 62" 28-29" draw length at 45#s.  Bareshelf no elevated riser.  Tip weight brings me to my next question on  weight of the tip that you experienced shooters would recommend.

Get a test kit of points from 125gr up to 200gr and go from there.

I did some calculations on Stu Miller's dynamic spine calculator using your bow, and it's putting the 500's with a 30" shaft at a 100 grain tip, and the 400's a 145 grain tip.

Good Luck

Thank you very much everyone!

I could tune my 45E limb titan with 600 and 500 easy

my 55# limbs tuned with 400 and could have used stiffer for sure if I wanted to use 200 gr tips

depends on what you wantand what your draw is.  mine is 27.5"

The weird thing about carbons is they recover more quickly from paradox and act stiffer, therefore the 3555s work well for my 50# Super Grizzly. Many have found Stu's calc to recommend stiffer carbons than what actual field use dictates. That same finding has held true for my shooting and bows.

For example, I am shooting 29 BOP 1535s out of my Hill style 47@27 7 Lakes with 100gr inserts and 125gr points. I would, at a glance, think they were too light in spine, but, with the quick recovery that carbons demonstrate, the 1535s work well.

I realize that Stew's calculator is just a general ballpark figure and should only be used as a guide line, but there are other's that have found this to be a useful tool when used properly. Also, are we not comparing apples to oranges when we are not taking into consideration the center cut of the riser.

For example: What if I would have started this thread and asked the similar question: What shaft spine should I shoot with my 46# longbow? Now everyone knows that recurves generally deliver more energy to the arrow than a typical longbow. So taking this into consideration, how would you have answered?  It would certainly make no sense to answer anything stiffer than .500.

In order to shoot a 3555 through my one piece 46# ACS using a 30" shaft with a 28" draw, you would have to put an 85 grain tip up front, and who wants to shoot with 85 grains up front. I shoot 30" shafts 7595's with this bow have a 28.5" draw, and 200 grains up front that will blow your socks off!

Point being, It's like looking at predicting how fast a car will go, without looking under the hood!

I'm probably wrong!

Hopefully he'll report back and give us an answer.

Peace to you Bruce.

Welcome again Matthew. If you have tuning questions once you make your purchase please post up and we'll be glad to help.


Bud

Now guess what I shoot through my 46#@28 Wallace MT.

GT Trads 30" 3555 with 175 up front. Why, because the riser is cut before center.

I shoot 1535's from my centercut 47 lbs recurves. But I use very lowweight frontloads, like 112 grains.

With higher frontloads I would recommend a 3555 or in other words, a 500 spine.

It is impossible to predict what frontloads you need, there are many factors involved:

- how much centercut is your bow
- what string and how many strands
- shaft length
- actual  drawlength when shooting
- your form

What arrows with a spine of 500, would yall recommend that are cheap. 45# pull 28" drawlength

Goldtip traditionals blems from bigjimsbowcompany.com.

Don't buy no cheap shafts like bullseye.