SINGLE LOAD OR MAGAZINE?

I have been a competition shooter in both small bore and long range high-power { high master in both } for more years than I would like to admit, and have always single loaded. It has carried over now to airgun bench rest. My groups are much tighter single load over magazine fed. However, I do use a single load adapter in both my Crown and Daystar R
 
Some guns magazine with auto indexing springs and put a little bit of pressure on the probe and cause some inaccuracy and single loading helps with that. That’s about all I know but having magazine is really quite convenient when hunting. When target shooting I sometimes use the single loader, it’s a more relaxing and slows me down when I pull a shot....which could be often. Hahaha