I have an M&P and was wondering if they can feed reloads with wadcutter bullets. Thanks for the info.
The S&W Model 52 was designed for flush fit wadcutters. It is extremely reliable. It is quite remarkable to make a pistol that is reliable with this type of ammo.
When Tom Campbell developed Super Gun (the .45 ACP pistol he used in competition, which led to the Model 645), it would feed empty cases and many 645s were known to be able to do the same thing.
No matter what anyone says, S&W knows how to design and build reliable autoloaders.
Assuming you are talking about the M&P auto, as opposed to the M&P revolver, the only way to know if yours will feed wadcutters is to try it, if you can find the bullets and reload them properly. I don't see the point, however, as the pistol is not designed for bullseye, which is the only place where the full diameter clean cut hole is necessary for scoring.
So, why do you want to use wadcutters?
If you are talking about semi-wadcutters, the M&P should feed those or truncated cone bullets and any hollow points all day long.