Trail Boss duplicates black powder loads, or around 1200 to 1300 fps max...its a bulky alternative to Unique.
Blue Dot will duplicate 30/30 velocities in a lot of calibers say from 257 Roberts and up, with deer bullets commonly used..
SR 4759 will give you a little more...
4227 is most accurate with 223 sized cases on down, same as 2400..
4198 kinda picks up where 4759 starts topping out..
all are good for reduced recoil and reduced velocity, yet can be loaded up to say the pressures used in old per 1898 Mausers...
