Thanks Tascosa and Pony both. That was another concern, and the point I was clumsily heading to regarding pressure in various cases. Since the open tops and conversions are rated to withstand the pressures of the .44 special and .45 colt base loadings, I assumed one could reach those in the smaller cases without affecting the integrity of the weapon, but I also assumed that heavier bullets in those smaller cases might achieve greater pressures more easily and thus, the powder of choice would be a crucial concern. I have read in these boards that BP itself is not always the best choice if pressure is the concern, but then, I know you cannot blow up the pistol with a full case of 3F so . . .
Is Unique a powder you could load a self-defense round with and not transgress the pressure rating of the piece? Are there better choices? How do i peruse the burn rates of a powder and determine the relative probability of it staying inside a pressure level or not?
This would never be a steady diet for the gun, just to leave in it while I carry it in the car or load it to place within reach of my bed.
Should I simply say the 240 Russian load is an acceptable self-defense round and not worry about it? I guess my questions about accuracy point in that direction, a heavy .44 bullet reaching a target at speeds in excess of 700FPS doesn't have to be driven the extra 50 FPS at the muzzle to achieve the stated goal. Hogdon has some data that indicates 800+ for the 240 with pressures of around 11000 which is plenty, I suppose. I guess I simply want more options, or simply have that in the back of my mind that if 840 is good, 920 is better. Time to get over my velocity bias.
Any recommendations for accuracy in either cartridge, knowing that it is always weapon specific, surely some give more consistent results?
Good advice both, thanks.