I recently came into a Marlin 336 rebarreled with a 28-inch Douglas .375 barrel with 1:14 twist and chambered to .38-55. I sized some Lee 379-250s RFs cast of range scrap and tumbled them in liquid Alox, then loaded them in Winchester brass, WLR primers, over 23.5 grains of 2400 and repaired to the range. Imagine my complete surprise at finding this on my 50-yard target. I am expecting some Sierra 200 grain .375 JSPs from Grafs and will load and shoot a sample of them, expecting accuracy. The crown of the muzzle looks to be perfect.