I agree with what others have said.
Factors influencing felt recoil:
Weight of the gun
Length and width of the grip
Length of the barrel
Bore axis
Design of the action - a locked breech will have less felt recoil than a blowback
Presence or absence of sharp edges on the frame, design and material of the grips, etc.
My own experience is that the .380 Beretta 84 with it's blowback action and alloy frame has just as much felt recoil as a 9mm BHP with all steel constuction.
Factors influencing felt recoil:
Weight of the gun
Length and width of the grip
Length of the barrel
Bore axis
Design of the action - a locked breech will have less felt recoil than a blowback
Presence or absence of sharp edges on the frame, design and material of the grips, etc.
My own experience is that the .380 Beretta 84 with it's blowback action and alloy frame has just as much felt recoil as a 9mm BHP with all steel constuction.