|
To add to what Rocky wrote (and fully in agreement) there seems to be on rare occasions just such things but they might happen only with the exact example test gun in the lab.
I found such a load in the older lyman manual (46 perhaps or maybe a cast bullet manual) which drove a 158 gr SWC over 1400 from a 4" .357 whith H110. That load did in fact work in my S&W 4" 19 (actually I got 1450 fps!!!) but when I tried it in a 4 3/4" Ruger Flattop the cases stuck. It also showed excess pressure in other guns.
One simply has to go careful. If it sounds too good to be true, it probably is. Not to say there are not some "niche" loads.
Riposte
__________________
The will to win is nothing, without the will to prepare.
|