It might just be a new gun, but...
It might also be your shooting technique.
Semi-auto pistols need the entire recoil impulse, to function properly. This is particularly true when you're using light, target loads.
So, if you do not grip the gun firmly enough, with rigidly-locked wrist and elbow, you may be absorbing some of the recoil impulse that the gun needs.
Try the "death grip" technique: Grip it tightly and hard. Keep your arm(s) rigid. "Isolate" your trigger finger, so that only it moves when you press the trigger.
Now, are you still experiencing jams?