gun bore oil

[loiner1965]

right i am home now as my last reply was by using my phone....
i would clean you barrel again exactly the same way and leave as normal.
when you run a patch in it only do it for the first inch and see if you get the rust / brown again.....keep moving down bore and remove and check each stage.
i have a portable steam press with a gun attachment on end which as a nozzle on.
buy one of these or similiar ( old steam iron remote station) and remove nipple ( put in ultrasonic tank ) and use steam from nipple channel and blast barrel in to a bucket.....do it both ways until clear water comes out.....then dry in oven lol
dont put in dishwasher unless stainless steel as some blueing may be removed.
i will try and find the uk test on the best rust preventing oil on youtube for you....
sometimes i just boil the kettle and pour it down the barrel each way......dry.....oil.....forget lol