I have a tc encore and two barrels, a muzzle loader and a 270 win. I have changed these barrels at least 10 times in the past but this year I cleaned it up after muzzle loader season and tried to put the 270 barrel back on and the hinge pin will not fit. I cannot get it to start into the barrel lug it goes through the receiver hole but will not start into the barrel, I tried putting the muzzle loader barrel back on that I just took off but its the same thing. can these pins somehow get larger ? I have a new pin on the way. has anyone else ever had this type of problem ? I measured it and it was 2 1000's bigger on one end.