The short action in the pump gun was more reliable than the semi-auto's. Had friends with 270,30-06,semi's that gave them all kinds of problems.
Alot of the poo-poo's that came from the long action pump owners were they were short strokeing the guns. They were also torqueing the forearms while pumping during times of excitement.
Keep everything lubed with a good quality gun grease. I use Tetra Gun or Reel Lube. If you get a used weapon,tear it apart and you will see the wear spots. Lube there.
Do not try to jack the loads up too far. Not needed for normal hunting. Crimp your bullets for anti inertia pull.
Google different mags for the gun. Buy quality or with good rateings. Enjoy. --- SAWMAN