I don't think so usually crimp jump occurs with heavy bullets.the with the 340 M&P with the steel cyl does not carry the warning.The restriction applies to .357 ammo only, and is due to the possibility of crimp jump, which will "tie up" the revolver, preventing cylinder rotation and giving you, in essence, a Scandium rock.
ALL SCANDIUM REVOLVERS FIRING MAGNUM AMMUNITION
WARNING: DO NOT USE MAGNUM® LOADINGS WITH BULLET WEIGHTS OF LESS THAN 120 GR. THIS WILL REDUCE THE POSSIBILITY OF PREMATURE CYLINDER EROSION.
– S&W Manual of Modern-style Revolvers
If you are considering buying one-try it before you buy it...
...and like the .38 spl SGD 135 gr for short barrels. Designed for snubs.
...They also have a .357 version in a 135 gr, I have not tried it yet.