Rightside,
Thanks.
I started handloading in 1999. I made my money by designing power supplies by blowing them up with overloads and beefing up the part that failed. When I started handloading I tried to blow up guns. My father, a gun designer, said I was not learning anything. My brother, a gun collector, said I was ruining guns. When CZ52s blew up too easily and Tokarevs would not blow up, I could see there was an error in the gun books. By 2005 I had it figured out.
By 2013 I wrote this, and got the attention of Hartmut Brömel, Quickload author in Germany:
....Ted Curtis, the ballistician wrote that all Eastern block Tokarev ammo was 42kcup except Russian, which tested at 31 kcup.
Then the load book "Accurate Smokeless Powder Loading Guide" 2000 came out with the same data.
Those loads were later recanted by AA.
Johan Loubser Ballistic Lab manager at Accurate Arms wrote some weasel words and revised their loads for the CZ52 only. This example is for 110 gr SPR RN 1.3":
a) The hot load from 2000: 11.7 gr AA#9 41,800 c.u.p 1688 fps
b) The wimpy load from 2005 8.5 gr AA#9, 34,270 psi, 1248 fps
But when I run the changes through Quickload, what I get is
I pointed out that Quickload sees the revision differently as AA#9 is also sold as Enforcer:
a) Quickload 11.7 gr, 4.72" barrel, 110 gr Speer Round nose .308 bullet, 1.3" OAL gives 1622 fps 63,866 psi
b) Quickload 08.5 gr, 4.72" barrel, 110 gr Speer Round nose .308 bullet, 1.3" OAL gives 1114 fps 22,953 psi
Notice the discrepancy between AA pressure measurement and Quickload calculations.
AA later pulled all CZ52 loads.
AA was later sold.
Since 2013 I have become a fan of 50 year old Richard Feynman videos on scientific method.
https://www.youtube.com/watch?v=hz2SENYI1rE
When he says "vague theory" to attack Carl Sagan or someone of that era for bad science, today men like Paul Steinhardt attack men like Guth by saying "flexible theory".
Recently I worked with an 85 year old PhD from Bell Labs that attacked Sagan at a DOD nuke symposium way back in the day over the same issues.
It seems that bad science, horrible science, has been all around us for a long time, and I have just started noticing it and getting fussy.