My Rem 11-87 had its first hick up in 15 yrs. Fired around and the bolt stuck open, would not release at all , removed action , and completely cleaned, no visible issue, cycled the action , open hit release sveral times, I got it?? nope when I then fired it and pulled the bolt open would not release manuely, took backapart, Im not schooled enough to see what internal part actualy holds the bolt open, see no wear or, bent , spring seem fine ,,,, sooo any help, Bob