I have not been able to quietly and carefully close the bolt unless I purposely want the gun to be loaded but unable to fire!
Typically load the magazine, put it in, release the bolt, then pull the mag and put a round in it to be full. (mine is .300 WSM so that is 4 total, one in chamber, 3 in mag)
if anyone has come up with a quiet and reliable method to get the gun loaded and ready to fire, it would be nice to read.