Have some 115 gr sierra's that I like to load in 270 WSM but have no reloading manual with info on them. can someone help? I have Varget, 4831sc, and reloader 19. Any help would be appreciated.
I suggest using the different powder manufacturer/distributor data websites. They usually have the latest updates. If your exact bullet weight is not listed, use the next heavier bullet data and you'll be safe.
A Powley analysis of your cartridge/bullet combo indicates that powders with a burn rate of RL19 and H450 would be ideal. To the slow side, 4831 is right there, and might prove to work just as well or better. Varget, according to the simulator, is too fast for best results.
Call Sierras tech line and tell them what you want to do with their bullet and they will direct you to a powder and charge that will work.
2nd choice is take data from another source and SIMILAR bullet and work up from the statring load.
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