I have a 4 3/4 inch barreled model 83 in 454 and found the same issue. I liked the size and compactness of the gun, but anything close to full house loads were not pleasant at all. I ended up loading some 300gr LTC bullets over 9.0 grains of Unique in Casull brass for just under 1000 fps. This load is very usable and effective. I would not want to steer you away from a dream gun, but I would say to shoot it the way it is with loads that are equivalent to 45 Colt Ruger loads in Casull brass and see what you think.