I got a small pile of 7mmRM brass, I sorted it by weight since it came from different boxes. The difference between the light and heavy is 10 grains. Is this going to make enough difference to cause pressure problems between the extremes? The gun it is for is a hunting rifle only. I can only expect MOA out of this gun, since that is about all it has ever been.
- Thread starter badshooter
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Re: 10 grain difference
On a hunting rifle, don't worry about the weight difference, and load it up. You didn't say if it was all the same head stamp or not. When you work up a load on one brand of brass, and switch to another, it can change it up. For example, when I load my max charge for my 270 Win on Win brass, and switch to Rem brass, the necks are thicker. This causes the bullet to seat with more tension, and causes higher pressure. If it's all the same headstamp (brand), you should be fine.
On a hunting rifle, don't worry about the weight difference, and load it up. You didn't say if it was all the same head stamp or not. When you work up a load on one brand of brass, and switch to another, it can change it up. For example, when I load my max charge for my 270 Win on Win brass, and switch to Rem brass, the necks are thicker. This causes the bullet to seat with more tension, and causes higher pressure. If it's all the same headstamp (brand), you should be fine.
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