I have been handloading for a lot of years for rifles and semi-autos. I have SBH in 45 Colt that I am learning to shoot...the shift from autos and double actions is significant, but I'm finally finding the grip that works for me.

Currently I'm shooting 250gr RNFP Laser Cast Bullets at about 900fps to learn the gun. I have loaded some 260 SWC at about 1000 and Linebaugh's load at about 1300 just to try them.

Question: using cast bullets, can load data be used across bullets weights? For example, can I safely use the data from my 250 grainers with a 255 or 260gr bullet? Or the other way around?

Second question: I'm drawn to the new Ruger Toklat; are the Ruger rings repeatable enough to remove and remount optics without drastic change in POI?

Thanks for your input.