This is why heavy draw bows such as 60-70 lb. A 300-spine 4mm FMJ weighs in at 11.7 grains per inch. Choosing a Spine Weight. But I didn't pick this arrow simply for its weight. However, if the arrow is very flexible, imagine the softness will result in a dancing shot that will make the arrow jiggle as it flies out of the bow. It measures how much an arrow will bend or flex. The bow's cam, bow speed, arrow length and many other conditions affect performance during flight. A 29-inch arrow would weigh 340 grains before you put any components or a point on it. For example, a 250 spine will be stiffer than a 500 spine. As draw weight increases, so should arrow rigidity (spine). draw weight" or "for bows up to 70 . I'm a beginner. --. The carbon arrows have a 500 spine rating. Take your draw length and add 0.5″ up to a maximum 1″ to determine appropriate arrow length. (SUPER PROMO) US $11.56 27% OFF | Buy 28/30/31 Inches Archery Carbon Arrow Spine 500 ID 6.2MM Archery For Compound Recurve Bow Arrows Hunting Shooting From Seller EagleArchery Store. Real 3" streamline feather fletchings. If you use a carbon that is labeled as 9.0 or 10.0 GPI and 125 gr. . And building better arrows doesn't have to be expensive. The Spine number in the intersecting cell is the required Spine for your set-up. I just bought that as well. 5. 3 The details of spine weight. ElkNut1. That 4mm diameter makes this a true micro-diameter arrow, which further aids in penetration. I'm shooting 45# with a 30 1/2" arrow and a 29" draw length, out of a Fleetwood Knight recurve, that has a 25" machined riser, making it a 66" long bow. Actual Peak Bow Weight at your draw length. I'm debating whether I should go with .400 spine beman carbon arrows or .500 spine. Static spine is how much an arrow reacts when a 1.94 lb. The Build: Total arrow weight: 550+ grains FOC: 15-20%. .005" or Better Straightness or Straighter. Spine is how much the shaft bends under a particular load. I have the same draw length and arrow length. Spine is how much the shaft bends under a particular load. Mark arrow here Draw Length 1" clearance (minimum) Valley of nock groove Arrow Selection Chart Once you have your Arrow Length and Actual Bow Peak Weight, you are ready to select your correct arrow spine. Awesome! The weight of an arrow is measured in either grains or grains per inch. FEATURES. Arrow Length: 500 spine size is typical for a junior arrow, according to the arrow chart would go up to a 46lb draw weight bow: dimension: 1.75 x 3.50 x 33.65: height: 1.7500: width: 3.5000: type: arrows: straightness factor plus/minus.006" weight tolerance plus/minus: 1.0 gr: prop65warningcode: a12 So if your draw length is 28″, you should get arrows with a maximum length of 29″. 34" Shaft Length. In some cases and manufacturers, that rule is reversed, so be sure to refer to the spine chart by your arrow manufacturer when selecting your shafts. Spine basically means the stiffness of the arrow. After settling on a proper arrow length, the next things to consider are an arrow weight and the spine strength. The 350, 400, and 500 spine models are fletched with 5" shield cut feathers. Find your bow type and bow weight along with the point weight you plan to use. Selecting the correct arrow spine is critical to accuracy, performance and safety. You can look at it on the table, depending on your bow type, the arrow's length, and your draw weight. Stick to the spine recommendations for your draw weight andarrow length, since that will give you the best performance. For every inch of draw above or below 28″ add or subtract 5% of the draw weight. For your son as I did mine at 13 I would recommend a 400 spine arrow over 500 spine. Again, it's always best to estimate an arrow's weight with an arrow weight calculator before building or buying arrows for a specific species or hunt. Stainless Steel Outserts - 100 Grains. The standard for determining draw weight on these types of bows is measuring the force necessary to pull the bow back to 28inches. The Airstrike 6 pack arrows cover long distances faster with 400 spine rates, 7.8 gpi shaft weight, and 32-inch length. They think that's the right way to reduce arrow weight.It's not.When we talk about an arrow's spine, we're talking about how much it flexes. weight causes the shaft to sag down is the arrow's actual spine deflection. For a visual comparison, refer to our arrow chart to find which . The next aspect to consider is arrow weight. The 700, 600 and 500 Axis SPTs boast grains-per-inch of 6.1, 7.2 and 8.1, respectively. Someone shooting a bow with a 70-pound draw weight and a 29-inch draw length will grab a 400-spine arrow to replace the 340-spine arrow they've been shooting. Shop Quality & Best Bow & Arrow Directly From China Bow & Arrow Suppliers. 30" arrows in .600 spine work best with a recurve / longbow between 40 and 50 lbs of draw weight. 2.2 Step 2: measure the draw weight of your bow. Follow row until you arrive at the column with the arrow's carbon length. Mind you I haven't even tuned my bow yet. It is important to know the GPI of your arrow. Consider 7.5 to 8 grains per lb of draw weight when 55# or less, after that you can get more in the 6-7 grain per lb of draw weight. The draw weight is basically, "How strong do I need to be in order to pull this thing back?" For a recurve bow, it's measured by pulling back to 28 inches. A light arrow has a finished GPP of 5 to 6.5 grains for each pound of draw weight. Generally speaking, .600 spine is best suited for 35-45# bows and .500 spine is best suited for 45-55# bows. Enjoy Free Shipping Worldwide! These 31" arrows from AC Archery are some of the cheapest on the market. You'll find the spine number on the arrow's label. Straightness 0.006 (.001 - .006 straightness is the width of a human hair!) 500 spine arrows with 31" shafts which means you'll need a relatively long draw length to make these work properly. There are a lot of decisions to make when it comes to selecting an arrow. 2.3 Step 3: choose a point/tip. 600 Spine 500 Spine 400 Spine 340 Spine 300 Spine 250 Spine 200 Spine 150 Spine Arrow Selection Chart Traditional Recommendations 1. In such a test, a .400 spined arrow will flex .400 of an inch at 31" long. *All Carbon Express Different Sizing Options: *.500 Spine / 500, 150.400 Spine / 400, 250.350 Spine / 350, 350.300 Spine / 300, 450 That said, there's only one option available. Then there is dynamic spine, which describes the way an arrow reacts from the . Draw weight and draw length - When we realize that dynamic spine is the response of the arrow shaft to dynamic force, it is easy to see why draw length and draw weight are critical factors to consider when selected a properly spined arrow.. 2) The draw weight of your bow at YOUR draw length. I really don't like a heavy shaft cause I don't want to sacrifice FOC. Shaft: Black Eagle Carnivore—300 or 250 static spine Different arrow manufacturers use different values when indicating the spine of their arrows, which confuses beginners significantly. 30" arrows in .800 spine work best with a recurve or longbow between 30 and 40 lbs of draw weight. "Note: This chart is to be used for shooters using a 100 grain tip/point weight. But how does 40 lbs of draw weight translate into kinetic energy for the arrow? For example, if a 1.94 lb. 500 size arrow with a 7.3 GPI and 400 size arrow with an 8.2 GPI. For example, a lighter shooting bow should be using . BOW DRAW WEIGHT ADJUSTED WEIGHT CHART Proper spine selection is the key to optimum arrow flight. . old-training-wheels, I fully believe you are getting good flight with your setup. Example: Arrows that deflected 0.400 inches were categorized as dimension 400 arrows, and a 0.340″ deflection are a dimension 340 arrow. Limited Time Sale Easy Return. The Axis SPT addresses this concern with its generous weight rating. I have a 30# draw weight and a 26.5" drawn length. 2. Mosogos 12Pcs 28″ Carbon Arrows 2.95″ Feather Spine 500 Hunting Arrows for Compound Bow Recurve Bow. They fly beautifully. So, a 500 arrow bends .5-inches when the weight is applied. Weight - Listed in grains per inch. or Grains Per Inch. Actual Peak Bow Weight at your draw length. I use a .330 or .300 spine arrow with a 75 gr Brass Insert and 125 gr arrows to get me to 450 grains. Some common spines are 350, 400, 500 and 600. The arrow must be 29" in length and supported by two points, which are 28" apart. Stick to the spine recommendations for your draw weight andarrow length, since that will give you the best performance. If you're like me and have a pocket full of tags, a skinny wallet, and lose arrows like its your job, consider this budget-friendly build. The spine number is a deflection rating that measures the distance an arrow flexed with an 880-gram weight that is suspended between rollers 28 inches apart. The spine is dictated by the length of the draw and . Weight - Listed in grains per inch. We're talking about its stiffness. A midweight arrow weighs between 6.5 and 8 grains. Are 400 spine, 27" arrows overspined for 30 pound draw weight? My 53 pound stalker bare shafts perfectly with a .500 spined shaft and 185 grains total tip weight. They're supposed to be made to work best with 40-60 pound bows but I doubt you'll get them to tune in well. weight causes the shaft to sag down is the arrow's actual spine deflection. 2.4 Step 4: use the arrow chart to find the right spine weight. Spine strength must be matched to bow draw weight. Has an inside diameter of .2445". Ones draw length can also come into play here. Model - Designates arrow model. Tried to shoot a .400 spine arrow out of both bows and got terrible flight. models demand long and stiff arrows. point, the total finished arrow weight (435 to 465 gr) will be plenty for deer and your 50# bow. Consider 7.5 to 8 grains per lb of draw weight when 55# or less, after that you can get more in the 6-7 grain per lb of draw weight. The number of inches the arrow bends multiplied by 1,000 is the arrow's spine. The higher the number, the more flexible the arrow. More limber arrows will sag more. We left the spine and quantity up to you. GPP is the arrow's total weight divided by the bow's poundage for shooting that arrow. If a 400-spine arrow is what your setup calls for, don't choose the 340 simply to get more weight. You can then, by considering its spine, determine the total shaft weight. 29g/PC Weight of the arrowheads: 100 grain, Replacement tips to attach broadheads, if the screw in field tips not tight enough, you could fixed them with glue forbid lost. Weight @ 29" 570 0.570 Flash 7.2 209 500 0.500 BC 8.1 235 500 0.500 BC 8.1 235 . Fletching Colors (while supplies last): Available in red, black, yellow or blue. (BEST OFFER) US $37.61 5% OFF | Buy 6/12pc 32 Inch Wood Skin Carbon Arrows Spine 350 400 450 500 550 600 700 With 4" Real Feather For Longbow Recurve Bow Hunting From Seller ACCMOS Archery Store. Traditional archery hunting arrows should weigh between 375-1000 grains depending on the bow draw weight and arrow length. Determine the ATA (Archery Trade Association) rating velocity of your bow. With today's modern compounds, there are many variables that affect how an arrow reacts when it is thrust from the bow. 125 grains add 3 lbs of bow weight 351 FPS or higher add 10 lbs of bow weight 150 grains add 6 lbs of bow weight For complete interactive arrow selection visit eastonarchery.com or visit a qualified pro shop to assist in bow tuning and correct arrow size selection. As you are a beginner, you don't need to pay $100 each arrow. ALUMINUM ARROW SIZE SELECTION 48 49 with your correct arrow length, and note the group letter (A-M . All spines are fletched. For those of you who would like more detailed information, below is a table complied from Easton's aluminum arrow charts, showing the name, spine, weight and grains per inch for each arrow size. Weight @ 29" 570 0.570 Flash 7.2 209 500 0.500 BC 8.1 235 500 0.500 BC 8.1 235 . The lower the numbers, the thicker the arrow while the higher the number, the easier the shaft to bend. Enjoy Free Shipping Worldwide! need to look at is draw weight. Shop Quality & Best Bow & Arrow Directly From China Bow & Arrow Suppliers. Follow row until you arrive at the column with the arrow's carbon length. (HOT OFFER) US $62.39 | Buy 12pcs Archery Carbon Arrows Shafts Spine350 400 500 600 700 800 900 ID.166" For Recurve Bow Shooting Hunting From Merchant DECHUANG Archery Store. Heavy arrows weigh over 8 grains. When I want more I go with a heavier Broadhead, like a 150, 175, or 200. Enjoy Free Shipping Worldwide! The stiff arrows option is not good because stiff arrows do not bend for a balanced shot. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Torquing the bow makes arrows act weak in spine. 3. For example. Photo courtesy Easton Archery. Arrows are all labeled with a G.P.I. Example: A 40-pound bow draw weight should use a 500 gr arrow. Spine strength is measured by the number of inches an arrow bends when a certain amount of force is applied, typically ranging from about .500 inches to .300 inches. My Bob Lee's, 52 and 54 pounds, bare shafts with the same shaft, and a lil different tip weight. Gold Tip's spine chart recommends an arrow with a 500-spine rating, assuming the arrow carries a 100-grain point. Move across that row horizontally to the column indicating your . My 600 spine with a 125 gr. You can get good and economic deals for your first set of arrows. Limited Time Sale Easy Return. Featuring a multi-layer rolled carbon construction, Fleetwood carbon arrows are sturdy and built to last. For example, if a 1.94 lb. Put simply, the greater the draw weight and the longer the draw length, the more energy is built up in the bow at full draw, and transferred into the . Showing 1-2 of 2 answers. 341-350 FPS add 5 lbs of bow weight. Also, we strongly recommend that you use an arrow with at least 5 grains of weight per pound or draw weight (if you are shooting a 60 lb. Say for example you have a 40 pound recurve bow. Required: Feathers or Vanes and Points. It only took a few rounds of shots to get my first bullseye. Bone Collector MFX . Pinals Archery 300 340 400 Spine Carbon Hunting Arrows for Compound Bows Recurve Bow Practice Target 30 Inch Arrow Shaft Pack of 12PCS (Camo2 400) Buy Now. Increase the bow's draw weight to 60 pounds and shoot that 27-inch arrow, and the chart again calls for a 400 spine. The different spines refer to the stiffness, a 400 spine arrow is generally for bows 40-60 lbs. The arrow must be 28" in length and supported at each end of the arrow. BC 4. That same Easton 5mm FMJ weighs 10.2 grains per inch in a 400 spine. See all questions about this product. Not something any archer is willing to accept for target or bowhunting. World Class Archer John Dudley explains everything in this Nocked and Read. "Note: This chart is to be used for shooters using a 100 grain tip/point weight. The actual distance the 1.94 lb. This is best accom-plished by bringing the bow to full draw and having a friend mark Remember that you can vary the spine value in +/- 50 without any trouble. So I use an Easton Hexx or a Mammoth Hot FOC King. When purchasing arrows online, manufacturers often don't mention the spine of the arrows. 25" arrows in .1200 spine work best with a recurve / longbow up to 54" in length and up to 20 lbs of draw weight. Feather color varies per spine. The GPP total includes the weight of the shaft, nock, insert, point and fletchings. I had a set of Aluminum Easton arrows in .400 spine and at full length (31.25) they were showing slightly weak while bare shaft tuning. The bow's draw weight is essential in determining what type of arrow you need. To convert the spine (deflection in inches) to approximate draw weight, divide 28 by the deflection. Do, a stiffer shaft is needed to overcome your torquing issue. If you pull it back a few inches shorter, the draw weight will be less. The overall weight of your arrow should correspond to the draw weight of your bow. I have a 46# Kodiak and a 47# r/d longbow. This arrow spine is measured in numbers. The standardized evaluation for determining spine deflection is taking a 28″ arrow shaft and hanging a 1.92-pound weight from the shaft midpoint. The Sable RZ Select, available in spine sizes of 350, 400, and 500, was built to increase speed and reduce arrow drop. +/- 1 Grain Weight Tolerance. tip weight, flies better, is more accurate and has increased range due to flatter trajectory. Model - Designates arrow model. Example: Arrows that deflected 0.400 inches were categorized as dimension 400 arrows, and a 0.340″ deflection are a dimension 340 arrow. The Spine number in the intersecting cell is the required Spine for your set-up. The spine is indicated by the numbers 340, 400, or 500. Instead, they provide a threshold such as "suitable for bows with up to 55 lbs. Ones draw length can also come into play here. If a 400-spine arrow is what your setup calls for, don't choose the 340 simply to get more weight.