1906 PSI for 16ga loads?

[Paul Harm]

William, how much more pressure ? Everything I've read claims there wouldn't be all that much difference in pressure between primers unless it was the Fed 209A or CCCI M. All the others should be pretty much the same.

[William Davis]

Paul it’s hard to say because the powder charge weights were not the same. Data shows Powder, TiteWad, 3/4 oz shot same Hull and wad, all listed as as 1150 FPS loads. Cheddite primers vs Win 209s. The Cheddites were shown with higher pressure for 1150 ft.

Marginally higher with Cheddite means to me I can substitute 209 for Cheddite with out risk. Get down to the detail it’s not a exact comparison. My 3/4 oz bushing throws a bit less than 3/4oz Powder bushing drops a bit less than recommended, & who knows if the published data is the result of exact testing. Ambient temp at testing will change pressures. From rifle loading I can say for sure different lots of the same brand powder will produce different pressure too.

It’s a moot point for me, Winchester 209 is the only primer I can buy without a HazMat fee.

William