I'm here looking for answers on a very specific question. My question for anyone who has experience with Vihtavuori Tin Star is, does it burns clean and is ok to use in sealed suppressors? I am interested in using it in to develop a subsonic load for my 45 Raptor Rem 700 SBR, pushing custom made 500gn .452 bullets from Outlaw State. Tin Star was the powder recommended by Arne Brennan, the guy who developed 45 Raptor, as it's quite bulky and will give a good charge density and it'll get a full burn in my 12" barrel. The suppressor I'm going to be using is a Crux ARC, which is an all titanium sealed rifle can. If I was using a user serviceable can, I wouldn't be concerned, but obviously with a sealed unit I want to make sure it's not going to get fouled up by using pistol powders in a rifle can. Tin Stars intended used is for cowboy action shooting, which doesn't really mandate a clean burning powder; VV claims it's a clean burning powder, but "clean burning" is subjective. I have seen on other threads that some guys are using Tin Star for subsonic 300blk loads; which I would assume implies use with a suppressor (because otherwise what's the point?) but that's not always the case. If I'm going to buy Tin Star, I'd also be interested in using it for 300blk reloads (if it can generate enough pressure to cycle the action on an AR) which also goes through a sealed can, a SilencerCo Omega.If you know any other good powders worth considering for this specific application, let me know.
