elevatorman
Active member
The velocity and temperature stability is why I picked the 8133. I dont know how alot of guys do it but I start by deciding what purpose I want a load to serve, decide on a bullet next, then go look and load data for that bullet and im looking for the top two or 3 powders velocity wise. Then research those for benefits vs draw backs. Like if I remember right, retumbo was very affected by temperature.