I'm basing that with a noticeable reduction in powder residue remaining from the barrels of my O/U immediately after using Cheddite. A lot of my loads are in the 9000-9500 psi variety.
There's only one method of getting an correct solution towards your question rather then speculations and conjectures: diligently assemble 10 identical shells working with Every primer and deliver them into a ballistics lab similar to the just one at Downrange Mfg.
The primary distinction between Cheddite 209 primers and Federal 209A primers is inside their electric power and sensitivity.
Will this bring about the primer pocket getting “hogged out” and people hulls not usable with Get 209 primers ?
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The powder organizations need to just Halt publishing true "PSI" data (given that they can not Handle it), and just publish demand bodyweight "array" and velocity "selection" data, and just omit publish all "strain" data completely. I believe There exists a good deal of people that agree with this particular.
I feel that all this second guessing and tests of Formerly printed data is making people to chase 'ghosts'.
i.e. inside the perfectly sane Remington hull load circled in crimson that's a snug 10,000 PSI with a W209, what would the impression be to the primer battery cup (button?) encounter if you only switched from the W209 into a Ched 209 w/o decreasing powder ?
If would make you satisfied to state that I am Mistaken on account of what Ben at Alliant informed you, fantastic. But that doesn't cause you to, or Ben at Alliant, ideal.
The strain swing big difference just isn't as pronounced for Considerably slower burn off price powders, but it's continue to evident.
I am working a MEC9000GN winchester 209 primers on an Automate. I'm able to begin to see the .005" additional thickness leading to concerns with rotation, but I am unable to see what exactly is causing the bulge.
I believe ended up the primers that weren't really reliable ! I have some NEW Ched hulls with black sealer but They're at the very least 10
winders said: Of course, there are various recipes in which you could exchange the Winchester 209 primer While using the Cheddite 209 primer. Although the tension would Generally be employ as would the velocites.
