TROUBLE-SHOOTING ARROW GROUPS

You may have heard people say, "If your arrows group your arrows group at long distances, they will group at

short distances." In some cases, neither statement is true. There may be a minute disturbance in the equipment that

affects the equipment's potential for superior accuracy and causes poor arrow grouping. What follows here is information

that will help you perform the fine tuning adjustments necessary to eliminate most or all of the minute tuning

problems. Many archers have experienced one or all of the following arrow grouping/arrow flight combinations:

Poor arrow flight and good grouping - This is commonly the result of a stiff arrow. The arrow yaws

slightly as it leaves the bow, but usually recovers quickly and often produces very acceptable grouping.

Good arrow flight and poor grouping - Although this seems contradictory, the phenomenon is somewhat

common and relates to the tuning method you use. Having a perfect bullet hole through paper using the

Paper Tuning Arrow Test, or having the bare shafts impact exactly with the fletched shafts using the Bare

Shaft Planing Test, does not always mean your arrows will group well; it only indicates you have good arrow

flight. For this reason, Easton has developed the Fine Tuning and Micro Tuning methods, to assist you in

obtaining optimal grouping from your equipment.

Poor arrow flight and poor grouping - This is most often a problem of mismatched arrow spine or untuned

equipment. The information and tuning procedures in this bulletin should help you correct this problem.

Good arrow flight and good grouping - This should be the end result of your efforts!

Arrow grouping patterns often reveal probable arrow flight problems. Two of the most common grouping

indicators for determining arrow flight problems are described below. The examples provided are shown in

FITA distances, although they easily correlate to any longand short-distance shooting. Fig. 15 illustrates good

grouping patterns at the distances indicated.

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