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Old June 4, 2013, 10:15 PM   #1
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Is this common.....?

I was weighing some bullets tonight, first time I've ever done so and came across something that I thought odd since I've never weighed my bullets out before.

I was weighing some Hornady 139gr BTSP for my 7mm RM. I had a range of 138.0 up to 139.0. Most of the bullets were between 138.2-138.3 and 138.6-138.7, with a few here and there in the rest of the range.

I was just wondering if this wide of a weight range was common.
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Old June 4, 2013, 10:21 PM   #2
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1 grain is not a wide weight range. That is a tolerance of less than 1% (.7 %).
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Old June 4, 2013, 10:43 PM   #3
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That is totally fine. I reload hardcast lead with a variance of 1-9 grains, and they shoot just fine.
Delta Firearms Mfg Co. 07/08 FFL SOT 2, Hobby Shop Owner
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Old June 4, 2013, 10:44 PM   #4
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Yes, that is normal variation. Some match target bullets have less variation.
When I was shooting in matches, I used to weigh & group accordingly.
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