My only SA at this time is a Ruger Blackhawk in .45 with LC & ACP cylinders. It has the 5 1/2" bbl, but I had a gunsmith friend fit a stainless steel Blackhawk grip frame to it. Nice two-tone affect, adds some weight to the gun for better balance. Shoots like a dream with some 255 GR FP CB. I have not cast my own yet, but like that big boolet for this caliber. Next to acquire is a .357 (as a companion to a M94 in same caliber) and it will be the shorter 4 5/8 bbl because it will get toted a lot more than shot.