A couple of pressure questions

[skeet]

Not having the manuals available right now I don't know the answer to the first question... The second is a bit easier. The pressures for the newer cartridges and powders are now listed in PSI for the most part whereas the older data is listed in CUP copper units of pressure. There can be(and usually is) a great deal of difference in the two. Also the newer cartridges like the "NEW" short mags etc are loaded to higher pressures because the companies know that most of the rifles that use them are new modern actions made of new modern stronger steel. The darn companies are loading the old favorites like the 30-06 to lower pressures now days because there are a lot of tired older rifles and actions. The 06 is now over a hundred yrs old I wouldn't shoot an old 1895 Winchester in 30-06 with new ammo....but some surely would! The companies are definitely ruled by lawyers now days