I've been working with a full custom 7WSM. The rifle has a Broughton 5C barrel. Loads that were shooting fairly well are producing noticeably larger groups and nothing seems to shoot as well or consistent as it should. Tight group then fliers seem common. I suspected bore fouling to be the likely cause and paid more attention to the task. Using BoreTech Eliminator I can get many, many blue patches with no apparent end in sight. I only use a nickle plated jag and occasionally a nylon brush but continue to get blue patches. The bore also seems to have many tight/loose spots as the patch is pushed slowly down the bore. As an experiment, I tried several patches of Wipe-Out "Accelerator" followed by an hour soak in Wipe-Out foam and didn't even get a trace of blue. Followed that up with Eliminator and get blue patch after blue patch and still a rough bore. Any idea what may be going on here?