Primers

[Chris Pope]

So I hope I am not inappropriately changing the topic but...being new to the Parker world...here's my follow up question...if you have to fight a bit to open the action after firing a round isn't that doing harm to the Parker?
The reason I ask...after purchasing my first Parker a couple years ago I took it to SD to work on some pheasants. I ran out of my handloads (which were loaded to a spec recommended on a discussion board here) and substituted a factory ammo (now can't remember brand or data) and started having to exert a little bit of pressure to open the action. I stopped using the factory ammo because I thought it might be harming the shotgun. Is that a legitimate concern for these Parkers?