Yes- two things.
First- there was a safety recall on the Model 100. The firing pin tip could break, become lodged in the forward position, resulting in "slamfire" when bolt was released. 3 ways to check- remove magazine, turn rifle over, draw back bolt, look for a single letter like "L" or "X" stamped inside receiver above bolt- or strip bolt, look at firing pin. New pin is not round in the middle, but is flat on sides. OR- Call Winchester Product Service 1-800-852-5734 with the serial number of your rifles.
Second- the gas piston requires cleaning. Fail to clean it, and bolt may get locked in the forward position. Action cannot be removed from stock with bolt forward OTHER than by breaking the gas piston cap retaining clip. And that tiny damned little clip is no longer available as a part! So clean the things when you have been shooting them! If you do not have a manual, you used to be able to download from Winchester site, OR ask them to send you one.
Oh, yeah- one last thing. The stock shape tends to bring tears to my eyes with the .308. Added a recoil pad, and I no longer look like my shoulder got trampled by a herd of pygmies wearing football cleats.
Some more reading for you on the 100, and it's cousin, the 88.
Winchester model 88 Info