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Draw Weight & Adjusting Compound Bow Draw Weight

Draw weight is the necessary force, in pounds, needed to bring the compound bow to full draw. Shooting the proper poundage is very important so that required kinetic energy needed is met without sacrificing proper shooting form.

Before adjusting your poundage, the limbs may be “locked” into their current position by locking bolts. These would be located just below the top limb or above the bottom limb and are screwed into the riser. To adjust the limb bolts, these bolts must be loosened first. After adjustment, they can then once again be tightened.

To adjust the draw weight, we have to unload or load more stress (flex) on the limbs; we do that by tightening or loosening the limb bolts.

To raise draw weight to maximum poundage, tighten the limb bolts (clockwise) until both limbs are tight against the riser.

To lower the draw weight we unscrew the limb bolts equally on each limb (counterclockwise).

Safety Precaution: Be careful that you do not unscrew the limb bolts passed the bow’s lowest weight setting. If the limb bolts are unscrewed too much, the limb bolt’s threads can come out of the riser and cause damage to the bow and injure the mechanic.

Every bow’s limbs have a specific draw weight rating: 50-60, 60-70, 70-80, etc. To check to see if a bow is in “spec” (at its specified manufacturer’s measurements) tighten (clockwise) the limb bolts until the limbs are against the riser. The bow will now be at the maximum poundage and maximum draw weight, ATA measurement, and brace height measurement can be verified.

See also  .300 Winchester Magnum for Grizzly Or Brown Bear Hunting? Best Ammo (Round, Load, Cartridge) for a Successful Grizzly Or Brown Bear Hunt Hunting Calibers 04 Apr, 2020 Posted By: Foundry Outdoors Is the .300 Winchester Magnum a viable caliber/load/round/cartridge for grizzly or brown bear hunting? The accurate answer is “it depends”. However, the goal of this article is simply to address the question of whether the .300 Winchester Magnum is within the ideal range of suitable calibers to harvest grizzly or brown bear. As with anything, the devil is in the details. To answer the question completely, we would need to evaluate the downrange distance to the grizzly or brown bear, the bullet type, the grain weight of the bullet, the physical condition of the firearm, the size of the grizzly or brown bear in question, the shot placement, the local wind conditions, the expected accuracy of the shooter, the ethics of the ideal maximum number of shots – the list goes on. [Click Here to Shop .300 Winchester Magnum Ammo]What we can do is provide a framework to understand what average conditions might look like, and whether those are reasonably viable for a shot from the average shooter to harvest a grizzly or brown bear in the fewest number of shots possible, i.e., ethically. Let’s dive right in. In the question of “Is the .300 Winchester Magnum within the ideal range of suitable calibers for grizzly or brown bear hunting?” our answer is: Yes, the .300 Winchester Magnum is A GOOD CHOICE for grizzly or brown bear hunting, under average conditions, from a mid-range distance, with a medium grain expanding bullet, and with correct shot placement.Let’s look at those assumptions a bit closer in the following table. Assumption Value Caliber .300 Winchester Magnum Animal Species Grizzly Or Brown Bear Muzzle Energy 3520 foot-pounds Animal Weight 595 lbs Shot Distance 200 yardsWhat is the average muzzle energy for a .300 Winchester Magnum? In this case, we have assumed the average muzzle energy for a .300 Winchester Magnum round is approximately 3520 foot-pounds. What is the average weight of an adult male grizzly or brown bear? Here we have leaned conservative by taking the average weight of a male individual of the species, since females generally weigh less and require less stopping power. In this case, the average weight of an adult male grizzly or brown bear is approximately 595 lbs. [Click Here to Shop .300 Winchester Magnum Ammo]What is the distance this species is typically hunted from? Distance, of course, plays an important role in the viability of a given caliber in grizzly or brown bear hunting. The kinetic energy of the projectile drops dramatically the further downrange it travels primarily due to energy lost in the form of heat generated by friction against the air itself. This phenonemon is known as drag or air resistance. Thus, a caliber that is effective from 50 yards may not have enough stopping power from 200 yards. With that said, we have assumed the average hunting distance for grizzly or brown bear to be approximately 200 yards. What about the other assumptions? We have three other primary assumptions being made here. First, the average bullet weight is encapsulated in the average muzzle energy for the .300 Winchester Magnum. The second important assumption is ‘slightly-suboptimal’ to ‘optimal’ shot placement. That is to say, we assume the grizzly or brown bear being harvested is shot directly or nearly directly in the vitals (heart and/or lungs). The third assumption is that a projectile with appropriate terminal ballistics is being used, which for hunting usually means an expanding bullet.Various calibersA common thread you may encounter in online forums is anecdote after anecdote of large animals being brought down by small caliber bullets, or small animals surviving large caliber bullets. Of course those stories exist, and they are not disputed here. A 22LR cartridge can fell a bull elephant under the right conditions, and a newborn squirrel can survive a 50 BMG round under other specific conditions. Again, the goal of this article is simply to address the question of whether .300 Winchester Magnum is within the ideal range of suitable calibers to harvest grizzly or brown bear - and to this question, the response again is yes, the .300 Winchester Magnum is A GOOD CHOICE for grizzly or brown bear hunting. [Click Here to Shop .300 Winchester Magnum Ammo]This article does not serve as the final say, but simply as a starting point for beginner hunters, as well as a venue for further discussion. Please feel free to agree, disagree, and share stories from your own experience in the comments section below. Disclaimer: the information above is purely for illustrative purposes and should not be taken as permission to use a particular caliber, a statement of the legality or safety of using certain calibers, or legal advice in any way. You must read and understand your own local laws before hunting grizzly or brown bear to know whether your caliber of choice is a legal option.Foundry Outdoors is your trusted home for buying archery, camping, fishing, hunting, shooting sports, and outdoor gear online.We offer cheap ammo and bulk ammo deals on the most popular ammo calibers. We have a variety of deals on Rifle Ammo, Handgun Ammo, Shotgun Ammo & Rimfire Ammo, as well as ammo for target practice, plinking, hunting, or shooting competitions. Our website lists special deals on 9mm Ammo, 10mm Ammo, 45-70 Ammo, 6.5 Creedmoor ammo, 300 Blackout Ammo, 10mm Ammo, 5.56 Ammo, Underwood Ammo, Buffalo Bore Ammo and more special deals on bulk ammo.We offer a 100% Authenticity Guarantee on all products sold on our website. Please email us if you have questions about any of our product listings. Leave a commentComments have to be approved before showing up Your Name * Your Email * Your Comment * Post Comment

To raise draw weight

Tighten the limb bolts until the limbs are tight to the riser. how to adjust draw weight on a compound bow

To lower draw weight

First, raise the drawing weight to its max. Next, unscrew both limb bolts one revolution (360°) and check the poundage on a bow scale. Repeat this process until you reach your desired draw weight. Only attempt to shoot draw weights in the limb’s specified range (50-60 lbs, 60-70 lbs). If they are not marked, max out the draw weight and your lowest draw weight will be 10 lbs lighter in most cases. When using a bow scale, hook the string to the scale’s hook at the nocking point and pull down on your bow’s riser until your bow is at it’s “roll over” spot on the cams and look at the scale for its draw weight. Try not to roll the cam(s) over, but if you do, make sure you keep a good grip when raising the bow back up to take it off the scale… it’ll try to take you for a ride! bow scale draw weight

How To Find Your Ideal Draw Weight

To find your ideal poundage, sit down on a chair or tailgate of a truck and pull your bow back with your feet off the ground. If you are comfortable with the poundage and can hold full draw comfortably, the poundage is where you need it. If the poundage seems high (it was tough to pull back and hold) lower the draw weight in 2 lb increments until you have found a comfortable draw weight.

Average draw weights

  • Smaller children (45-65 lbs) = 10-20lbs
  • Children (65-95 lbs) = 20-35lbs
  • Women and boys (95-125 lbs) = 35-45 lbs
  • Larger women and boys (125-145 lbs) = 45-55 lbs
  • Men (145-175 lbs) = 55-65 lbs
  • Muscular men = 60-70 lbs
  • Muscular barbarians = 70-100 lbs
See also  7 Largest Catfish Ever Caught

Although these are average drawing weights, it is important to shoot what is comfortable for you. Any attempt to draw more weight than you should will result in improper archery form and affect accuracy.

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