STORMINORMAN
Member
re: "Open case space"
The difference in case length between 44 Special vs. 44 Magnum & 38 Special vs. 357 Magnum is there primarilly to prevent the latters from being loaded in the formers...
Not really designed to make more "room" for additional powder. Plenty of room (in many instances?) for a double charge, and THAT'S even worse!
I have heard of concerns in some rifle loads with some powders in extremely low temperature environments, or even the position(?) of the powder in the case, but...
I'm confident there will be some more experienced reloaders out here with more specific knowledge on this subject.
Cheers!
I've been loading what would be considered .44 Special loads in .44 Magnum brass for a few decades, along with .38 Special loads in .357 Magnum brass. Never had any issues. With the faster powders there's a ton of empty space in the Special cases anyway, so the small amount of additional space in the Magnum cases really doesn't make any difference.
The difference in case length between 44 Special vs. 44 Magnum & 38 Special vs. 357 Magnum is there primarilly to prevent the latters from being loaded in the formers...

Not really designed to make more "room" for additional powder. Plenty of room (in many instances?) for a double charge, and THAT'S even worse!
I have heard of concerns in some rifle loads with some powders in extremely low temperature environments, or even the position(?) of the powder in the case, but...
I'm confident there will be some more experienced reloaders out here with more specific knowledge on this subject.
Cheers!