Just a side note;
I cannot stress the importance of setting up any brand of dies properly for best results.
Over many years of re loading (Over 50) I have only found one or two sets of dies that were not to
SAMME specifications and were not usable.
Lots of beginning re loaders do not set there dies up correctly for there chamber (All chambers are/can be, slightly different so they should be adjusted for that chamber).
I read all the time about a bad chamber or set of dies and most of the time it is the die adjustment
and nothing else.
I could get into a long winded discussion about sizing and spend lots of time debating the best way to size cases. (There are many ways and philosophy's about it).
So to keep it simple, I would recommend that brass is sized only enough to chamber. Use a case that was fired in that chamber to set up your dies and adjust them only enough to chamber the round with very little effort. (There is no need to bump the shoulder unless the case does not want to chamber) Bumping the shoulder changes the head space and shortens case life if done on a regular basis.
If dies are cut to SAMME specifications, it doesn't matter what brand they are, there may be some extra features on some of the more expensive dies, but sizing will be the same if set up correctly.
The only time that I recommend a full sizing smaller than the chamber is in a Simi auto where feeding could be a problem.
As a person gets better at re loading, he can make adjustments to suit his needs as long as he understands the cause and effects of this change.
So to sum it up; keep it simple and follow the instructions that come with the dies, don't over size
if the brass will chamber easily. Proper set up is more important than the cost of the dies. Expensive or custom dies can be set up wrong and end up no better than a less expensive set, and in some cases, worse than the cheaper dies if set wrong.
Just my opinion and advice to those that are just getting into re loading.
J E CUSTOM