Nhoro
AH fanatic
- Joined
- Sep 16, 2014
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- Harare,Zimbabwe
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- Cleveland Gun Club
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- Zimbabwe
I believe (wasn't there so ...) Win Mag problems were more about the chemistry of the powder than compression. Many people have long term compressed loads ( 1 member on this forum states 30 years storage ) that perform exactly as they say on the box. I have also seen numerous reports of 303 ammo and other hunting cartridges that were not compressed at all having clumping problems. As I said, I think it is wrong chemistry that causes powder to degrade and not compression.Winchester became well aware of problems associated with compressed ball powder loads in their 458 WM ammo in their attempt to have the 458 WM perform up to predetermined, market driven minimum velocity standards. A few cycles of ammo into high temperatures over some time and presto- congealed/caked powder and very unreliable ammo performance.