Over the years I've used Winchester, Remington, CCI and Federal primers and never saw any difference (on metallic cartridges) other than how they package them. I do remember years ago having some Winchester 209's that were so hard that my older double barrel's rounded firing pins wouldn't set them off where my 1100 would bust'm just fine.
And I prefer the primers packaged laying on their side in small square packages that my primer tray completely covers just for the ease of loading them into my primer feeder.
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