Range test, first shot! Inspect the brass for pierced or cratered primer. Note report and recoil if/as to being overly strong? Check brass case base for bulges... Load three rounds, note degree (violence and distance up or over) of ejection, ... If you have placed masking tape on the rear of the frame at the toggle stop area, check for imprints and see how much is deformed or the degree of recoil you are experiencing? The best loads for longevity, will just barely work the action to lock open on last shot... (like the piper cub is the safest airplane to fly, it will just barely kill you!...
) Finally, general inspection, see that firing pin tip is rounded and not corroded, that pins are not excessively loose, and that there are no cracks in the rear toggle .... then shoot up the rest of your ammo, now $30.00 + bucks a box, and go home!... Best, til....lat'r....GT....