I'm talking about the .357 Magnum in a Marlin levergun, not from a short barrel revolver.
I'm not intending on using the .357 on deer, I'm just thinking out loud and wondering what y'all think? Good idea, bad idea, maybe idea? Don't form an opinion until I lay out my case.
About 2 years ago I did some load testing with different bullet weights from a Marlin .357 Magnum levergun. I used a Sierra 140gr, 150gr and 170gr JHC bullet along with a Hornady 180gr XTP and a Cast Performance 180gr WFNGC bullet. I used 2400, W296/H110 and Lil'Gun. The velocities I'm going to post are from Lil'Gun which were the highest tested with no loss of accuracy.
.357 in a Marlin levergun
140gr JHC - AV 1987
150gr JHC - AV 1826
170gr JHC - AV 1793 (wow)
180gr XTP - AV 1584
180gr CP WFNGC - AV 1657
30-30 in a Glenfield levergun and Sierra FN bullets
150gr - AV 2038
170gr - AV 1957
170gr using 36.3gr LVR - 2330 fps
So, looking at the above actual data it looks like the .357 Magnum give away very little to the 30-30 when shot from a longer barrel. I'm sure the 140gr bullet at almost 2000 fps or the 150gr bullet at over 1800 fps will take a White Tail Deer cleanly since compared to the 30-30, which is a proven platform, generates only slightly more velocity. (~10%)
So, yes or no and if yes which bullet weight? I like the 140gr bullet or possibly the 150gr bullet. I see no need for a heavier bullet especially since the velocity drops off some but for the Cast Bullet.