So, has anyone had any luck with using Kroil? I recently purchased a 110 Timberline chambered in 7mm Backcountry and you absolutely cannot shoot that thing without hearing protection. I had to send it back to Savage to get the chamber polished as the fired steel alloy casings were jamming in the chamber. That's a whole other story but while they had it I also asked them to remove the muzzle brake but of course they ignored that request. I suspect they spray the threads with Cerakote before installing the brake which makes it damned near impossible to remove. One of the reasons I bought a 7mm BC was that it has excellent velocity out of a 20" barrel which makes it a perfect candidate for a suppressor. Can't do that if you can't get the flipping brake off. Idiots.