Good article -
I don't see much GECO brass, and it has a metric primer hole a bit smaller than most American brass, so I don't do much reloading with it.
But I have done a lot of WIN and CBC and RP and haven't ever had issues with those in .40 S&W loads.
The study is on 9mm loads - but my experience tends to go generally along the same lines as the findings marked.
I don't see much GECO brass, and it has a metric primer hole a bit smaller than most American brass, so I don't do much reloading with it.
But I have done a lot of WIN and CBC and RP and haven't ever had issues with those in .40 S&W loads.
The study is on 9mm loads - but my experience tends to go generally along the same lines as the findings marked.