[jack404]

first off the prep for the rifle may not have been as good as you wished , here i'd redo it again

only way to get it all with the birchwood kits you HAVE to oilm it after the works done theres a pad with a oiled cloth in it , use that its quite good let that sit a hour then regular gun oil all over and let sit a day or two then reassemble to ensure coverage and avoid a repeat of whats happening now