Last spring I was getting ready to bed a barreled action I had inletted. got the trigger guard bottom meatal out of the package it was in and realized I had been sent a short action instead of a long. so, ordered new one and put project aside. I had left a strip of tape on barrel at end of forearm. Fast forward to this winter, finally finished project. Took the tape off and guess what, it left a mark that I cannot figure out how to get off. This is a bead blasted stainless barrel. It doesn't look horrible, but one can see where the tape was. I have tried a variety of chemicals, heat with blow dryer. I'm afraid to take steel wool and oil to it as I noticed where my pencil rubbed against barrel when marking the top of forearm, it left a small line that I can't get rid of either. No worries there as it is now just below the top of forearm.
Any thoughts will be appreciated

Sounds like the adhesive may have slightly oxidized the metal. Degrease the area and try some white vinegar on a q-tip on an inconspicuous spot. Neutralize with baking soda and water. Also try a spot with Soft-scrub on a q-tip. You can always have it re-blasted.

Look at the mark with a higher powered magnifier and you can see if it is a residue or if it is some sort of pitting then decide how to deal with it.

If the steel has staining, you can try using a dremel with the smallest wire wheel you have and at the slowest speed you can do and confining it to the smallest area where you are just touching up the stained area while using a magnifier otherwise just bite the bullet and soda blast or whatever method the entire gun until you are happy. OR just go and hunt the crap out of it where there are other assorted dings so you don't notice the mark any more.

Lastly, if you don't have one for fine work go to ebay and search "40X illuminated magnifier" they start around $3 and are surprisingly good quality for a few dollars.

Get some "Barkeepers Friend" cleanser and make a thin slurry. Swab it on and it will remove any residue. Also will remove heat colors on SS. Keep away from bluing.

Easy
Test on a junk surface, the aluminum should be softer than the surface, or just use a soft scotch bright

Wad up some aluminum foil in a loose cramped ball, hit the barrel with goof off and lightly rub the aluminum ball on it.

No Dez nutz please

Goo Gone removed 99%, can still see where tape was if you hold it in the light just right. It's a hunting rifle so I think that is good enough.

Thanks for the ideas.

I would try in this order:

Goof Off. stronger than goo gone
Acetone
Stainless steel wool. Don't use carbon steel wool. You'll put a rust spot on the stainless

Just re-bead blast the whole barrel and be done w/ it. Or rub the entire bbl down w/ oiled scotch bright and create a whole new finish.

After taking it out and checking loads, I notice that it is completely gone now Not my rifle, but one I built a stock for a lady. thanks for all the ideas. If I ever have to work with bead blasted again, I will be more careful.