help me please

I recently bought a BL-5 for my sister to get into skeet. It is a great little gun but the barrel catches on the reciver and I am not sure why. It's not super bad but I take some effort to break free. Any suggestions are greatly appreciated.

I just bought a new Browning Citori CXS. I took the forend off and cleaned it up real good. I put the barrels back on the receiver but when I put the forend on the latch lever doesn't close. I have contacted Browning and their service department mentioned that sometimes the humidity can shrink...