Cheddite Primer pressure spikes

[Milton C Starr]

I was looking at this chart earlier.
My 10 ga cheddites appear to have the 2000 primer as they are copper color.

[Mark Garrett]

There is too many variables to go willy nilly changing components in a published load.

Both those test show his loads increased by 3300-3500 psi , so I guess that info from Alliant to ad 2500 psi goes right out the window in this case.

In every case that I have had loads tested with Win 209 vs Ched cx2000 primers, the Ched primers have always had more pressure.