Bushnell Scout 1000 Rangefinder Owner's Manual - Page 21

What if your caliber is not listed? While we have taken great care to include as many calibers and brand names in our ballistics tables, new loads are always being developed. In addition, some shooters load their own ammunition with unique ballistic characteristics. If you cannot find your load in our ballistic tables, you can still use the bullet drop feature of the laser rangefinder. As above, sight in your rifle at 100 yds. Then shoot the rifle, without adjusting the riflescope, at 300 yds. Measure the bullet drop from the point of aim. Using this drop, select the ballistic group from below. If you will be shooting longer distances then you may want to check the bullet drop at 500 yds. Because there is enormous variation in rifle barrels, chambers, and hand loads, you should thoroughly test the ballistic setting before actual hunting. You may need to move up or down one group depending upon your tests. If Bullet Drop is: @300 yds @300 m Use: A 25-31 inches 63-79 cm B 20-25 inches 50-63 cm C 16-20 inches 40-50 cm D 13-16 inches 34-40 cm E 12-13 inches 30-34 cm F 10-12 inches 25-30 cm G 8-10 inches 20-25 cm H Less than 8 inches Less than 20 cm @500 yds @500 m 114-146 inches 291-370 cm 88-114 inches 225-291 cm 72-88 inches 182-225 cm 61-72 inches 155-182 cm 55-61 inches 139-155 cm 47-55 inches 119-139 cm 39-47 inches 99-119 cm Less than 39 inches Less than 99 cm 21