Dave Schiller makes some good comments above. I am not the originator of these spreadsheets; however, they were given to me, and I make them available to whomever wishes them.
To clarify, my spreadsheets of LP loads for 12 gauge were compiled from the reloading manuals of major powder manufacturers/sellers and put in order of ascending pressures. I have not, however, included a disclaimer, which in view of Dave's statement, I will in the future. Each of the listed loads can be verified via the listed powder against that manufacturers reloading handbook, e.e., if PB is the powder listed for a particular load, that same load (including primer, hull, wad, and shot load) will be listed in the IMR handbook. And, as suggested above, absolutely no deviation of component brand/model is to be allowed. To do otherwise may, and can, drastically change the pressure. Jim Haynes
