A single man with no one depending on him may choose to disregard the following. However, I would advise against practicing with light loads and carrying full magnums for serious purposes without being able to demonstrate proficiency. Heaven forbid you have to use your weapon because a lawsuit will ensue and the prosecutor will attempt to make you appear irresponsible if not worse. You could lose everything you own to your attacker or his family. I would recommend you practice with .38s and once proficient with them then practice with .357s until you can hit your target. For instance, my standard is six rounds on the space close to that of a paper plate at 25 yards. When I can do that I consider myself proficient. I begin by practicing with .38s. Once there, I practice with .357s. Afterwards I annotate the target with the distance, load, and date. I keep the most current one.
One time while on the line for qualification, a small statured officer was firing magnums. The area behind the target was the safest place to be. She was shooting up the ground all around the feet of the rest of us and we looked like a bunch of drunks doing the Mexican hat dance. She would have been better served, as would all of us and the public, had she carried .38s.
Even for someone who isn’t concerned with the law, it is still morally reprehensible for him/her to carry a deadly weapon if he/she has not mastered it. Just because they mastered a revolver loaded with .38s does not mean they have mastered it loaded with magnums.
I realize my opinion may be in the minority but there are likely to be innocents in the area beside the miscreants should you have to shoot. I for one would hate to live with harming an innocent person because I allowed macho to trump responsibility.
Just my opinopn.