arrow spine
03-03-2021, 10:32 AM
#2
Nontypical Buck
Join Date: Feb 2008
Location: West Central Illinois
Posts: 1,099
Spine too low allows the arrow to flex more than necessary. I always use the highest spined arrow shaft recommended for my set up. I never go lower.
Sorry... not a direct answer to your question.
I suggest calling an arrow manufacturer such as Easton or Gold Tip. I suspect you will find someone in their customer service that will give you a precise answer.
Sorry... not a direct answer to your question.
I suggest calling an arrow manufacturer such as Easton or Gold Tip. I suspect you will find someone in their customer service that will give you a precise answer.
03-03-2021, 10:35 AM
#3
Nontypical Buck
Join Date: Feb 2008
Location: West Central Illinois
Posts: 1,099
The weight of your arrow point will affect spine. As the point weight increases the arrow spine lowers. It takes more bow energy to get a heavier tipped arrow moving than a lighter tipped arrow.
Arrow spine chart link below.
https://www.goldtip.com/Resources/Spine-Chart.aspx
Arrow spine chart link below.
https://www.goldtip.com/Resources/Spine-Chart.aspx
03-03-2021, 05:27 PM
#4
Boone & Crockett
Join Date: Jan 2004
Location: Eastern PA
Posts: 12,726
Ma you also have to include arrow length into the equation. A 500 spine arrow at 26" in length will act stiffer than a 500 spine arrow at 30". And like Roger stated above the tip weight also comes into play.
Using the chart above and your arrow length is 28" using a 100 gr tip, for 45-49 lb draw you're at the high end of a 500 spine arrow. Personally I would opt for a 400 spine. Three reasons: 1 if you so desire you can crank up the draw weight all the way to over 60# should you choose; 2. The stiffer/heavier arrow will be easier to tune, quieter to shoot, and have less stress on the bow and 3. Will give you added spine should you decide on going to a heavier tip.
Using the chart above and your arrow length is 28" using a 100 gr tip, for 45-49 lb draw you're at the high end of a 500 spine arrow. Personally I would opt for a 400 spine. Three reasons: 1 if you so desire you can crank up the draw weight all the way to over 60# should you choose; 2. The stiffer/heavier arrow will be easier to tune, quieter to shoot, and have less stress on the bow and 3. Will give you added spine should you decide on going to a heavier tip.
04-07-2022, 04:36 AM
#6
Spike
Join Date: Apr 2022
Posts: 5
Ma you also have to include arrow length into the equation. A 500 spine arrow at 26" in length will act stiffer than a 500 spine arrow at 30". And like Roger stated above the tip weight also comes into play.
Using the chart above and your arrow length is 28" using a 100 gr tip, for 45-49 lb draw you're at the high end of a 500 spine arrow. Personally I would opt for a 400 spine. Three reasons: 1 if you so desire you can crank up the draw weight all the way to over 60# should you choose; 2. The stiffer/heavier arrow will be easier to tune, quieter to shoot, and have less stress on the bow and 3. Will give you added spine should you decide on going to a heavier tip.
Using the chart above and your arrow length is 28" using a 100 gr tip, for 45-49 lb draw you're at the high end of a 500 spine arrow. Personally I would opt for a 400 spine. Three reasons: 1 if you so desire you can crank up the draw weight all the way to over 60# should you choose; 2. The stiffer/heavier arrow will be easier to tune, quieter to shoot, and have less stress on the bow and 3. Will give you added spine should you decide on going to a heavier tip.
