Having just returned from running a few rounds from a Ruger #1-A 270 downrange, I have to say that RL26 seems to be somewhat less 'smokeless' than numbers like 4350 and 4831. I don't know it that's related to the decoppering compounds that are added, or if there's another factor involved. It does shoot well with the Hornady spire points I've been shooting though.

Sometimes, the air you 'let in'matters less than the air you 'let out'.