I recently purchaced some Oregon Trail Lazercast bullets for my Ruger Old Army. They are 200 gr. RNFP sized at .452. Because of fit to the cylinder, I made a compression die and resized the bullets to .454/.455. At this size, I get minimal shaving and a nice, snug fit(help us all if they slip forward). With 35 gr. of H777, Ox Yoke over powder wad to elliminate any possibity of hang fire , this load has shown good preliminary results at 25&50 yd marks . I had to replace the front sight blade with one around 1/8 higher because of the pistol shooting high with virtually every bullet I have tryed. Though I dont want to exeed H777's max load, I could fit another 5-8 gr. with acceptable compression amounts. Has anyone on thi forum been shooting Old Army with conicals or H777?