Originally Posted by PATRICE
One faction...leaving the magazine loaded, causes spring wear. Another faction...cycling the magazine causes spring wear.
It would be more accurate to summarize in the following manner.
One faction says that leaving the magazine fully loaded may
cause the spring to weaken if the spring materials, spring design, spring manufacturing techniques are wanting or if the magazine design overcompresses the spring either unintentionally or intentionally as a design compromise to save space and weight while maximizing capacity at the expense of an inexpensive easily replaced part. Otherwise it won't weaken the springs.
Another faction says that cycling the magazine causes spring wear but only over a very long period of use unless the spring materials, spring design or spring manufacturing techniques are wanting.