M.S.-That's good that you have more than one manual. I have six or seven and like to cross-reference loads for any given cartridge. I'll note the max's and starting loads in several manuals, then pick a charge in the middle of the road or a little lower, then work up from there. <P>A chronograph is very valuable for load development. When your velocities near the accepted velocity max for a given cartridge/bullet weight combo that's a good indication you are nearing max in a given firearm. Factors such as magnum or standard primers, barrel length, temperature, bullet choice, cannelure location if crimping, no crimp, light crimp, heavy crimp, free-bored or not, etc., etc., can all have an effect on velocity, accuracy, and consistency. <P>Each manual will list the firearm used to determine velocity, whether it was a pressure barrel or production or custom rifle. They will also list the primers used for each powder listed and the brand of cases they used in development. Take note of all these things.<P>Keep good records, be meticulous and consistent in your technique and your loads will amaze you. A little common sense goes a long way, you shouldn't have any problem there. And don't be afraid to ask questions about anything. There are plenty of people around here willing to help. Good luck, Troy.<p>[This message has been edited by Troy (edited March 23, 2001).]