I have a remington 7mm mag shooting a 162 a-max with 62.5 grains or RL-22. Should I use a lee factory crimp die and crimp my bullets? Will it help accuaracy?
..........No need to crimp a 7mm mag! Whether that affects accuracy or not, is best determined for your rifle by experimenting.
I`ve reloaded for my former 300 Win for 35 years, for nearly 3 years and currently a 300 WSM, and for the past year and a half and currently, a 375 Ruger. For either, I haven`t crimped a one yet! My more accurate reloads get moa and better.
The only things crimped in the past were revolver cartridges such as my former 44 mag and my current 500 S&W.
I really don`t see how crimping vs not crimping would offer any better accuracy. That`s not to say that crimping may offer a little better accuracy in some rifles.
