I agree - the simplist solution is to shoot better ammo. I have 11-87 Ducks Unlimited - shoots everything. Only had one failure to feed - bolt stayed open and shell was still in mag. Never seen it before.
All I did was to cycle the action again - and it fired. This was w reloads. The trend is toward reloading and lighter loads.
Baretta 391 - competition model - still needed spring change $12 to handle cheap shells & light reloads.
Remington advised me to have ports drilled to new spec if I continue to have problems cycling. Evidently, I do not have the improved Tgt/Skeet gas ports. Since I have only had one malfunction, I am holding off w my Remington. I have already tuned my Baretta to light loads.
Note: I will have to change springs to avoid battering if I use 3" Mag.
Gent told me to wrap steel OOOO steel wool around brass brush to polish chamber. Doesn't sound as effective a brake cylinder hone.