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load calculator
- Thread starter 1Longbow
- Start date
barnes website
https://www.barnesbullets.com/wp-content/uploads/2017/07/308WinchesterForWeb.pdf
It shows
COL 2.735
H4985 Start 39.7g, max 44.1compressed
Corrected It is not over max. I was over tired and did not read it correctly. my apologies.
It is seated slightly longer than Barnes specs. but depending on the rifle and how it was set up it may be fine.
https://www.barnesbullets.com/wp-content/uploads/2017/07/308WinchesterForWeb.pdf
It shows
COL 2.735
H4985 Start 39.7g, max 44.1compressed
Corrected It is not over max. I was over tired and did not read it correctly. my apologies.
It is seated slightly longer than Barnes specs. but depending on the rifle and how it was set up it may be fine.
Last edited:
Aguila Blanca
Staff
How did you arrive at the conclusion that his cartridges are above the maximum?Shadow9mm said:I would be careful as you are above max, and seated out farther than barnes specs. have you checked to see how far off the lands you are?
Your numbers indicate a maximum load of 44.1 grains when loaded to a COL of 2.735".
He has cartridges loaded with 42.5 grains (below your maximum), at a COL of 2.799 Longer than your COL by .064".
Unless I'm missing something, it appears that these cartridges are pretty much mid-range.
Unless the bullets are too close to the throat in his gun, those should be mid-range in a Winchester case. Close to the throat, pressure starts to rise and touching the throat will usually produce about 20% increase in peak pressure in a rifle cartridge.
In theory, the bullets could be seated deeper to match Barnes's spec to make it safe to shoot in any chamber, but in practice, my inclination would be to pull the bullets and check the powder condition and charge weight then re-charge and re-seat them.
In theory, the bullets could be seated deeper to match Barnes's spec to make it safe to shoot in any chamber, but in practice, my inclination would be to pull the bullets and check the powder condition and charge weight then re-charge and re-seat them.
I was over tired and read it wrong. My apolgies. I fixed it.How did you arrive at the conclusion that his cartridges are above the maximum?
Your numbers indicate a maximum load of 44.1 grains when loaded to a COL of 2.735".
He has cartridges loaded with 42.5 grains (below your maximum), at a COL of 2.799 Longer than your COL by .064".
Unless I'm missing something, it appears that these cartridges are pretty much mid-range.