When shooting purely to evaluate the accuracy of a rifle/ammunition combination, I attempt to remove as many of the variables as is reasonably practicable. The forend of the rifle rides in a Sinclair Windage Benchrest. The stock rests in a Protektor bunny-ear rear bag. A mirage shade is attached to the scope. Ammunition is usually fed from the magazine, as that’s the way that I personally use my weapons in practical settings. A Wind Probe is used to monitor the wind conditions and I use a hard hold on the rifle.
10-shot groups are an absolute must for your results to have any statistically significant meaning to them; preferably three 10-shot groups. The most accurate AR-15 that I currently own has a free-floated 24” Krieger barrel with a 1:7.7” twist. The groups shown below were fired from that weapon in the manner described above.
Contrast the above groups with a 3-shot and 5-shot group from the same weapon.
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