I think this is the bottom line: Ivory does not come with a guarantee. Grips used with live fire sometimes crack. Should you decide to equip one of your favorite shooting irons with ivory, have them fitted to the frame by an expert, and possibly even further glass bedded so that they do not move during recoil, zero shifting, and the glass will make maximum contact to the frame for reinforcement. I would avoid wrap around grips (and guns that take them) like a Browning Hi Power, and those that mount with a single screw. With regard to single action revolvers, it was also a common practice to make one piece grips that fit inside the two piece Colt style grip frame (two slabs of ivory glued to a wood interior block). They don't even require a screw. So, it also depends on the style and frame of your gun, as to how much "beating" they will take. Keep yor screws snug, and not overtightened. Maybe even removable loctite them, so that the grips don't come loose, and shift during range sessions.