New barrel time soon April 15, 2021, 02:47:28 PM My Gen 1 RPR will be needing a new barrel soon. I'm thinking of a Bartlein stainless steel barrel. 5R rifling and maybe 7.5:1 twist instead of 8 twist. Any suggestion on barrel contour? I'd like to keep it from being too heavy. Bartlein offers RPR barrels with "standard" (RUGER OEM) contour in 24"W/ 0.75 muse diameter and HEAVY in 26" with 0.830 muzzle diameter.Maybe the "heavy" with the extra 2" of length would give me a bit more velocity? Eric B.