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I did a test one time mixing head stamps on .223 I think there was 12 or more different ones.

Some had very little case volume and the powder would be in the neck where others would be well below the neck.


There were 2 really off ones and I reduced the load to below the neck.

Accuracy was like you said 1.5" at 100 yards.

If I only shoot one head stamp usually tested many to find a favorite. The rifle would shoot 1/2" or better groups at 100 yards.

For plinking mixed is fine but for putting meat on the table I only use my best ammo.


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