gr8fuldoug Report post Posted January 8, 2009 The New Dead On Accurate (DOA) Reticle from Bushnell Unleashed: the world’s most lethal long-range reticle and field-judging device in one. Dramatically stretch your effective range and judge a buck’s trophy quality in record time. Extended yardage aiming points enable you to shoot with lethal precision out to 600 yards with a rifle (DOA 600) and 250 yards with a muzzleloader (DOA 250). Both have Rack Bracket reference lines for sizing up whitetail and mule deer antlers. It all adds up to a whole new level of drop-dead certainty and fewer excuses at the moment of truth. Share this post Link to post Share on other sites
gr8fuldoug Report post Posted January 13, 2009 More Info From Bushnell: GENERAL INSTRUCTIONS The DOA reticle gives hunters a series of aiming points that correspond to various black powder and centerfire loads. These aiming points, combined with our innovative Rack Bracket, allows hunters to expand their effective range while also aiding in field judging whitetail or mule deer at extended distances. Bushnell would like to stress that these tools are only as good as the time spent practicing with them. Nothing can replace quality firing range time and becoming comfortable shooting at each of the prescribed yardages, while noting bullet placement. It is imperative for the hunter to spend time at the range, gaining familiarity with the reticle and how it works with their firearm and bullet load. Ballistic performance can vary depending upon a number of factors, including barrel length, powder type, bullet type, and numerous weather/atmosphere related variables. THE DOA 250 RETICLE – For Muzzleloaders Scopes with the DOA 250 are designed to be sighted-in at 100 yds, with aiming points every 50 yds, out to 250 yds. The top of the reticle’s bottom post represent approximately 300 yds. The shooter can use either .45 or .50 cal ammunition, and either 100 grains or 150 grains of Triple 7 pellets. The ballistic chart provided below is an abbreviated version of the more complete one available online at: http://www.bushnell.com/customer_service/ manuals/rifle.cfm The scope must also be set to the proper magnification for the reticle’s ballistic feature to function properly. In the case of a 3-9x 40mm scope, the power change ring must be set at 9x for the ballistic function and Rack Bracket to work correctly. How To Use the Reticle: 1. Sight in at 100 yds on any magnification setting 2. Determine distance to target. For the best accuracy in determining distance, utilize a Laser Rangefinder. 3. Set the scope’s magnification to 9x (9 power). 4. Place the appropriate aiming point on the desired target. If the target was determined to be at 175 yds, hold directly between the 150 yd aiming point and the 200 yd aiming point. THE DOA 600 RETICLE – For Centerfire Rifles Designed to be used with today’s most popular centerfire rifle cartridges, the DOA 600 reticle is intended to be sighted in at 100 yards, and provides aiming points at every 100 yd increment, out to 600 yds. The user can sight-in at 100 yds on any magnification setting, but for the ballistic reticle feature to function properly, the scope’s magnification must be set to the correct power. The correct settings for the scopes that include the DOA reticle are as follows: If your scope is a: 3-9x40 4-12x40 2.5-16x42 4.5-30x50 Use this power setting: 9x 12x 16x 20x How To Use the Reticle: 1. Sight in at 100 yds on any magnification setting 2. Determine distance to target. For the best accuracy in determining distance, utilize a Bushnell Laser Rangefinder (Scout 1000 ARC, Legend 1200 ARC). 3. Set the magnification to the appropriate setting. 4. Place appropriate aiming point on the desired target. If the target is determined to be at 350 yds, hold directly between the 300 yd aiming point and the 400 yd aiming point The DOA 600 reticle will work with any of the following ammunition loads: .223 Win 55 gr .243 Win, 95 gr. . 25-06 Rem 115 gr .270 Win, 130 gr. . 270 WSM, 150 gr. .7mm Rem Mag, 150 gr. This is only a partial list of the ammunition that the reticle is ballistically matched to. For a complete list of all ammunition compatible with the DOA 600 reticle technology, please visit: http://www.bushnell.com/customer_service/manuals/rifle.cfm HOW THE RACK BRACKET WORKS In an effort to help hunters, Bushnell looked at issues that had confronted many of them in the field. Field judging deer, especially via magnified view, can be exceedingly difficult. To help with the field judging of whitetails and mule deer we have incorporated a series of lines that extend out from each aiming point. Each lines measures 24 inches at the respective distance. There will also be two “hash marks” on each line that measure 17 inches between them. Why did we choose 24” and 17”? After extensive research it was determined that 24 inches represents the average width of a mule deer’s ears and 17 inches was the average width of a whitetail’s ears. Given proper time to judge an animal, a hunter can now get an estimate of rack width, and possibly even tine length. Rack Bracket estimations are for reference only and may not be exact. Make note that it is the sole responsibility of the hunter to make the final determination on any animal they decide to harvest. Please refer to your local and/or state regulations regarding antler width standards for harvested animals. It is the hunters responsibility to be knowledgeable of and abide by all game regulations. The Rack Bracket System Size him up and put him down with the Rack Bracket. Based on scope set at highest power. For example, a 3-9x scope would need to be at 9x for Rack Bracket accuracy. 24" – All extended yardage crosshairs measure 24," the tip-to-tip distance between an average mule deer’s ears. Judgement – Use the 24" and 17" measurements to gauge the buck’s width. If the ears fit, you have an accurate estimation of range. 17" – The hash marks on each extended-yardage crosshair indicate the distance between an average whitetail’s ears. 1. Determine the distance to a whitetail or mule deer. For the most accurate distance measurement, use a Bushnell Laser Rangefinder (for best results, a model with angle range compensation (ARC) is recommended- for example, the Scout 1000 ARC, Legend 1200 ARC, etc). 2. Turn the scope’s power ring to the appropriate position. 3. If the distance matches one of the prescribed aiming points you can utilize the Rack Bracket to gauge antler width. 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