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How do you measure the weight of an arrow so its legal to hunt with?

I would like to know the details so I can get my arrows set up accordingly.

Answer

Most sporting goods stores and archery shops should have grain scales, used for either weighing bullets/powder or arrows.  When measuring arrow weight, make sure to include insert, shaft, broadhead, nock, and fletching.  Minimum arrow weight for hunting big game in Idaho is 300 grains, but many bowhunters prefer heavier arrows for large animals such as elk to ensure proper penetration.