I have heard the same thing that distantfoe stated about the surface finish being a bit rougher.
I lube my rifle cases in the neck and the outside then resize them..
Before i lube i spin brush the neck insides.
After sizing i wipe all brass clean then trim.
Then another brushing of the necks with a spinning brush.
I have done this since day one..even when i used the vibratory to clean..
That few steps of brushing makes my rifle rounds seat very consistent.
I will say that brushing and even seating pressures got my rifles to shoot better than the .7"-.9" they were shooting.
so many steps in brass prep to get close to that one hole.
I lube my rifle cases in the neck and the outside then resize them..
Before i lube i spin brush the neck insides.
After sizing i wipe all brass clean then trim.
Then another brushing of the necks with a spinning brush.
I have done this since day one..even when i used the vibratory to clean..
That few steps of brushing makes my rifle rounds seat very consistent.
I will say that brushing and even seating pressures got my rifles to shoot better than the .7"-.9" they were shooting.
so many steps in brass prep to get close to that one hole.