For what it's worth
Two observations;
1) Just checked Speer reloading manual #13.
Same case specified for 38 and 38+P loads - 'Speer'.
Also, under 38, they touch on the +P developement but say nothing about case differences,
which leads to..
2) The people who pioneered the 357 and 44 Mags didn't have Mag or +P cases to work with; they worked with the Special cases loaded to higher pressures in stronger guns.
Sooooo.......
|