I agree, it's just not available from a reliable source. Even the pictures of the flash/flame produced by the different brands doesn't really prove anything but that they are different.It doen't exist. Primer makers are tight lipped about these specs. Lots of anecdotal and OLD info out there. Pictures of flash and what not. But it's old stuff.
Correct primers for 38 and 357
Reloading data lists these primers to be used with the 357 magnum. CCI 550 Mag., WSPM, FED 200, REM 5 1/2 Reloading data lists these primers to be used with the 38 special and 38special +P. CCI 500,Rem 1 1/2, Fed 100, WSP, Speer list the CCI 550Mag primer for Alliant 2400. This info is available at all primer manufacture websites. http://www.cci-ammunition.com/products/primers/primer_chart.htm
I do not.I don't consider it a significant difference, do you?
Very interesting.Remington 1 1/2 SP was the oddball, 1044 fps.
I should have added: While I've never seen anyone publish "lab results". It's widely believed that Federal have the thinnest cups which makes them ideal for revolvers where you can set the hammer spring tension very low.
The OP did ask for pressure/temp differences, but also said to beThe OP did not ask which primer is "best", nor which ones require the least force to ignite
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interested in finding out the difference between .... primers.
Adjusting the strain screw on a revolver is NOT the correct way to lighten a trigger to ignite primers.
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The best primers for pistols? If you go by demand that would be Fed 100s as they are hard to find.
The OP did ask for pressure/temp differences, but also said to be
Did I say that it was?
But I will admit to the scarcity being an indicator of "best". Sorry about that ,shouldn't' have said that one.
Even back when reloading supplies were in short supply, Federal 100s were always available around here, even when no other small pistol primers were anywhere to be found. I always figured it had to do with the stupid way they package them.